fix merge conflicts

116 files changed, 8379 insertions, 4856 deletions

diff --git a/.babelrc b/.babelrc
index 628fe652c..fcabd2d1a 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,4 +1,4 @@
 {
-  "presets": [["env", { "debug": true }], "react", "stage-0"],
+  "presets": [["env"], "react", "stage-0"],
   "plugins": ["transform-runtime", "transform-async-to-generator", "transform-class-properties"]
 }
diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6d4bf270c..c9d8cdf6a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -5,7 +5,6 @@ workflows:
   full_test:
     jobs:
       - prep-deps-npm
-      - prep-deps-firefox
       - prep-build:
           requires:
             - prep-deps-npm
@@ -28,7 +27,6 @@ workflows:
       - test-e2e-firefox:
           requires:
             - prep-deps-npm
-            - prep-deps-firefox
             - prep-build
       - test-e2e-beta-chrome:
           requires:
@@ -37,7 +35,6 @@ workflows:
       - test-e2e-beta-firefox:
           requires:
             - prep-deps-npm
-            - prep-deps-firefox
             - prep-build
       - test-unit:
           requires:
@@ -49,7 +46,6 @@ workflows:
       - test-integration-mascara-firefox:
           requires:
             - prep-deps-npm
-            - prep-deps-firefox
             - prep-scss
       - test-integration-flat-chrome:
           requires:
@@ -58,7 +54,6 @@ workflows:
       - test-integration-flat-firefox:
           requires:
             - prep-deps-npm
-            - prep-deps-firefox
             - prep-scss
       - all-tests-pass:
           requires:
@@ -103,46 +98,34 @@ jobs:
       - restore_cache:
           keys:
             - v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-            # fallback to using the latest cache if no exact match is found
-            - v1.0-dependency-cache-
       - run:
           name: Install npm 6 + deps via npm
           command: |
-           sudo npm install -g npm@6.1.0 && npm install --no-save
+           sudo npm install -g npm@6 && npm install --no-save
+      - persist_to_workspace:
+          root: .
+          paths:
+          - node_modules
       - save_cache:
           key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
           paths:
             - node_modules
-  prep-deps-firefox:
-    docker:
-      - image: circleci/node:8.11.3-browsers
-    steps:
-      - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-firefox-
-      - run:
-          name: Download Firefox If needed
-          command: ./.circleci/scripts/firefox-download.sh
-      - save_cache:
-          key: v1.0-dependency-cache-firefox-
-          paths:
-            - firefox
 
   prep-build:
     docker:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
+      - attach_workspace:
+          at: .
       - run:
           name: build:dist
           command: npm run dist
       - run:
           name: build:debug
           command: find dist/ -type f -exec md5sum {} \; | sort -k 2
-      - save_cache:
-          key: build-cache-{{ .Revision }}
+      - persist_to_workspace:
+          root: .
           paths:
             - dist
             - builds
@@ -152,23 +135,23 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
+      - attach_workspace:
+          at: .
       - run:
           name: build:dist
           command: npm run doc
-      - save_cache:
-          key: docs-cache-{{ .Revision }}
+      - persist_to_workspace:
+          root: .
           paths:
-            - docs/jsdoc
+            - docs/jsdocs
 
   prep-scss:
     docker:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
+      - attach_workspace:
+          at: .
       - run:
           name: Get Scss Cache key
           # this allows us to checksum against a whole directory
@@ -176,8 +159,8 @@ jobs:
       - run:
           name: Build for integration tests
           command: npm run test:integration:build
-      - save_cache:
-          key: scss-cache-{{ checksum "scss_checksum" }}
+      - persist_to_workspace:
+          root: .
           paths:
             - ui/app/css/output
 
@@ -186,8 +169,8 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
+      - attach_workspace:
+          at: .
       - run:
           name: Test
           command: npm run lint
@@ -197,8 +180,8 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
+      - attach_workspace:
+          at: .
       - run:
           name: Test
           command: npx nsp check
@@ -208,10 +191,8 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - restore_cache:
-          key: build-cache-{{ .Revision }}
+      - attach_workspace:
+          at: .
       - run:
           name: test:e2e:chrome
           command: npm run test:e2e:chrome
@@ -224,15 +205,11 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-firefox-
       - run:
-          name: Install firefox
-          command: ./.circleci/scripts/firefox-install.sh
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - restore_cache:
-          key: build-cache-{{ .Revision }}
+          name: Install Firefox
+          command: ./.circleci/scripts/firefox-install
+      - attach_workspace:
+          at: .
       - run:
           name: test:e2e:firefox
           command: npm run test:e2e:firefox
@@ -245,10 +222,8 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - restore_cache:
-          key: build-cache-{{ .Revision }}
+      - attach_workspace:
+          at: .
       - run:
           name: test:e2e:chrome:beta
           command: npm run test:e2e:chrome:beta
@@ -261,15 +236,11 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-firefox-
       - run:
-          name: Install firefox
-          command: ./.circleci/scripts/firefox-install.sh
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - restore_cache:
-          key: build-cache-{{ .Revision }}
+          name: Install Firefox
+          command: ./.circleci/scripts/firefox-install
+      - attach_workspace:
+          at: .
       - run:
           name: test:e2e:firefox:beta
           command: npm run test:e2e:firefox:beta
@@ -282,15 +253,13 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - restore_cache:
-          key: build-cache-{{ .Revision }}
+      - attach_workspace:
+          at: .
       - run:
           name: Test
           command: npm run test:screens
-      - save_cache:
-          key: job-screens-{{ .Revision }}
+      - persist_to_workspace:
+          root: .
           paths:
             - test-artifacts
 
@@ -299,12 +268,8 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - restore_cache:
-          key: build-cache-{{ .Revision }}
-      - restore_cache:
-          key: job-screens-{{ .Revision }}
+      - attach_workspace:
+          at: .
       - store_artifacts:
           path: dist/mascara
           destination: builds/mascara
@@ -326,14 +291,8 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - restore_cache:
-          key: build-cache-{{ .Revision }}
-      - restore_cache:
-          key: docs-cache-{{ .Revision }}
-      - restore_cache:
-          key: job-screens-{{ .Revision }}
+      - attach_workspace:
+          at: .
       - run:
           name: sentry sourcemaps upload
           command: npm run sentry:publish
@@ -349,32 +308,22 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
+      - attach_workspace:
+          at: .
       - run:
           name: test:coverage
           command: npm run test:coverage
 
   test-integration-flat-firefox:
-    environment:
-      browsers: '["Firefox"]'
     docker:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-firefox-
+      - attach_workspace:
+          at: .
       - run:
-          name: Install firefox
-          command: ./.circleci/scripts/firefox-install.sh
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - run:
-          name: Get Scss Cache key
-          # this allows us to checksum against a whole directory
-          command: find ui/app/css -type f -exec md5sum {} \; | sort -k 2 > scss_checksum
-      - restore_cache:
-          key: scss-cache-{{ checksum "scss_checksum" }}
+          name: Install Firefox
+          command: ./.circleci/scripts/firefox-install
       - run:
           name: test:integration:flat
           command: npm run test:flat
@@ -386,38 +335,22 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - run:
-          name: Get Scss Cache key
-          # this allows us to checksum against a whole directory
-          command: find ui/app/css -type f -exec md5sum {} \; | sort -k 2 > scss_checksum
-      - restore_cache:
-          key: scss-cache-{{ checksum "scss_checksum" }}
+      - attach_workspace:
+          at: .
       - run:
           name: test:integration:flat
           command: npm run test:flat
 
   test-integration-mascara-firefox:
-    environment:
-      browsers: '["Firefox"]'
     docker:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-firefox-
+      - attach_workspace:
+          at: .
       - run:
-          name: Install firefox
-          command: ./.circleci/scripts/firefox-install.sh
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - run:
-          name: Get Scss Cache key
-          # this allows us to checksum against a whole directory
-          command: find ui/app/css -type f -exec md5sum {} \; | sort -k 2 > scss_checksum
-      - restore_cache:
-          key: scss-cache-{{ checksum "scss_checksum" }}
+          name: Install Firefox
+          command: ./.circleci/scripts/firefox-install
       - run:
           name: test:integration:mascara
           command: npm run test:mascara
@@ -429,14 +362,8 @@ jobs:
       - image: circleci/node:8.11.3-browsers
     steps:
       - checkout
-      - restore_cache:
-          key: v1.0-dependency-cache-{{ checksum "package-lock.json" }}
-      - run:
-          name: Get Scss Cache key
-          # this allows us to checksum against a whole directory
-          command: find ui/app/css -type f -exec md5sum {} \; | sort -k 2 > scss_checksum
-      - restore_cache:
-          key: scss-cache-{{ checksum "scss_checksum" }}
+      - attach_workspace:
+          at: .
       - run:
           name: test:integration:mascara
           command: npm run test:mascara
@@ -447,4 +374,4 @@ jobs:
     steps:
       - run:
           name: All Tests Passed
-          command: echo 'weew - everything passed!'
\ No newline at end of file
+          command: echo 'weew - everything passed!'
diff --git a/.circleci/scripts/firefox-download.sh b/.circleci/scripts/firefox-download.sh
deleted file mode 100755
index 64f0c74e3..000000000
--- a/.circleci/scripts/firefox-download.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/usr/bin/env bash
-echo "Checking if firefox was already downloaded"
-if [ -d "firefox" ]
-then
-    echo "Firefox found. No need to download"
-else
-    FIREFOX_VERSION="61.0.1"
-    FIREFOX_BINARY="firefox-$FIREFOX_VERSION.tar.bz2"
-    echo "Downloading firefox..."
-    wget "https://ftp.mozilla.org/pub/firefox/releases/$FIREFOX_VERSION/linux-x86_64/en-US/$FIREFOX_BINARY" \
-    && tar xjf "$FIREFOX_BINARY"
-    echo "firefox download complete"
-fi
diff --git a/.circleci/scripts/firefox-install b/.circleci/scripts/firefox-install
new file mode 100755
index 000000000..1d8e62d76
--- /dev/null
+++ b/.circleci/scripts/firefox-install
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+set -e
+set -u
+set -o pipefail
+
+FIREFOX_VERSION='61.0.2'
+FIREFOX_BINARY="firefox-${FIREFOX_VERSION}.tar.bz2"
+FIREFOX_BINARY_URL="https://ftp.mozilla.org/pub/firefox/releases/${FIREFOX_VERSION}/linux-x86_64/en-US/${FIREFOX_BINARY}"
+FIREFOX_PATH='/opt/firefox'
+
+printf '%s\n' "Removing old Firefox installation"
+
+sudo rm -r "${FIREFOX_PATH}"
+
+printf '%s\n' "Downloading & installing Firefox ${FIREFOX_VERSION}"
+
+wget --quiet --show-progress -O- "${FIREFOX_BINARY_URL}" | sudo tar xj -C /opt
+
+printf '%s\n' "Firefox ${FIREFOX_VERSION} installed"
+
+{
+  printf '%s\n' 'pref("general.config.filename", "firefox.cfg");'
+  printf '%s\n' 'pref("general.config.obscure_value", 0);'
+} | sudo tee "${FIREFOX_PATH}/defaults/pref/autoconfig.js"
+
+sudo cp .circleci/scripts/firefox.cfg "${FIREFOX_PATH}"
+
+printf '%s\n' "Firefox ${FIREFOX_VERSION} configured"
diff --git a/.circleci/scripts/firefox-install.sh b/.circleci/scripts/firefox-install.sh
deleted file mode 100755
index 1c60f4de9..000000000
--- a/.circleci/scripts/firefox-install.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/usr/bin/env bash
-
-echo "Installing firefox..."
-sudo rm -r /opt/firefox
-sudo mv firefox /opt/firefox61
-sudo mv /usr/bin/firefox /usr/bin/firefox-old
-sudo ln -s /opt/firefox61/firefox /usr/bin/firefox
-echo "Firefox installed."
diff --git a/.circleci/scripts/firefox.cfg b/.circleci/scripts/firefox.cfg
new file mode 100644
index 000000000..68dd285f2
--- /dev/null
+++ b/.circleci/scripts/firefox.cfg
@@ -0,0 +1,13 @@
+// IMPORTANT: Start your code on the 2nd line
+
+lockPref("app.update.enabled", false);
+lockPref("app.update.auto", false);
+lockPref("app.update.mode", 0);
+lockPref("app.update.service.enabled", false);
+
+pref("browser.rights.3.shown", true);
+
+pref("browser.startup.homepage_override.mstone","ignore");
+
+lockPref("plugins.hide_infobar_for_outdated_plugin", true);
+clearPref("plugins.update.url");
diff --git a/.gitignore b/.gitignore
index e53133361..af86113fb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,7 @@ package
 # IDEs
 .idea
 .vscode
+.sublime-project
 
 # VIM
 *.swp
@@ -34,6 +35,7 @@ test/bundle.js
 test/test-bundle.js
 
 test-artifacts
+test-builds
 
 #ignore css output and sourcemaps
 ui/app/css/output/
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d372c2849..ddaa496dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,16 @@
 
 ## Current Develop Branch
 
+## 4.9.3 Wed Aug 15 2018
+
+- (#4897)[https://github.com/MetaMask/metamask-extension/pull/4897]: QR code scan for recipient addresses.
+- (#4961)[https://github.com/MetaMask/metamask-extension/pull/4961]: Add a download seed phrase link.
+- (#5060)[https://github.com/MetaMask/metamask-extension/pull/5060]: Fix bug where gas was not updating properly.
+
+## 4.9.2 Mon Aug 09 2018
+
+- [#5020](https://github.com/MetaMask/metamask-extension/pull/5020): Fix bug in migration #28 ( moving tokens to specific accounts )
+
 ## 4.9.1 Mon Aug 09 2018
 
 - [#4884](https://github.com/MetaMask/metamask-extension/pull/4884): Allow to have tokens per account and network.
@@ -23,6 +33,8 @@
 - [#4691](https://github.com/MetaMask/metamask-extension/pull/4691): Redesign of the Confirm Transaction Screen.
 - [#4840](https://github.com/MetaMask/metamask-extension/pull/4840): Now shows notifications when transactions are completed.
 - [#4855](https://github.com/MetaMask/metamask-extension/pull/4855): Allow the use of HTTP prefix for custom rpc urls.
+- [#4855](https://github.com/MetaMask/metamask-extension/pull/4855): network.js: convert rpc protocol to lower case.
+- [#4898](https://github.com/MetaMask/metamask-extension/pull/4898): Restore multiple consecutive accounts with balances.
 
 ## 4.8.0 Thur Jun 14 2018
 
diff --git a/app/_locales/de/messages.json b/app/_locales/de/messages.json
index 1d2619672..c06a99250 100644
--- a/app/_locales/de/messages.json
+++ b/app/_locales/de/messages.json
@@ -84,7 +84,7 @@
     "message": "Auf Coinbase kaufen"
   },
   "buyCoinbaseExplainer": {
-    "message": "Coinbase ist die weltweit bekannteste Art und Weise um bitcoin, ethereum und litecoin zu kaufen und verkaufen."
+    "message": "Coinbase ist die weltweit bekannteste Art und Weise um Bitcoin, Ethereum und Litecoin zu kaufen und verkaufen."
   },
     "ok": {
     "message": "Ok"
@@ -828,7 +828,7 @@
     "message": "Willkommen zur neuen Oberfläche (Beta)"
   },
   "uiWelcomeMessage": {
-    "message": "Du verwendest  nun die neue Metamask Oberfläche. Schau dich um, teste die neuen Features wie z.B. das Senden von Token und lass es uns wissen falls du irgendwelche Probleme hast."
+    "message": "Du verwendest  nun die neue MetaMask Oberfläche. Schau dich um, teste die neuen Features wie z.B. das Senden von Token und lass es uns wissen falls du irgendwelche Probleme hast."
   },
   "unapproved": {
     "message": "Nicht genehmigt"
diff --git a/app/_locales/en/messages.json b/app/_locales/en/messages.json
index 1b0183c92..a25a2bd59 100644
--- a/app/_locales/en/messages.json
+++ b/app/_locales/en/messages.json
@@ -2,6 +2,9 @@
   "accept": {
     "message": "Accept"
   },
+  "accessingYourCamera": {
+    "message": "Accesing your camera..."
+  },
   "account": {
     "message": "Account"
   },
@@ -96,7 +99,7 @@
     "message": "Buy on Coinbase"
   },
   "buyCoinbaseExplainer": {
-    "message": "Coinbase is the world’s most popular way to buy and sell bitcoin, ethereum, and litecoin."
+    "message": "Coinbase is the world’s most popular way to buy and sell Bitcoin, Ethereum, and Litecoin."
   },
   "bytes": {
     "message": "Bytes"
@@ -116,8 +119,8 @@
   "close": {
     "message": "Close"
   },
-  "chromeRequiredForTrezor":{
-    "message": "You need to use Metamask on Google Chrome in order to connect to your TREZOR device."
+  "chromeRequiredForHardwareWallets":{
+    "message": "You need to use MetaMask on Google Chrome in order to connect to your Hardware Wallet."
   },
   "confirm": {
     "message": "Confirm"
@@ -143,15 +146,12 @@
   "connecting": {
     "message": "Connecting..."
   },
+  "connectToLedger": {
+    "message": "Connect to Ledger"
+  },
   "connectToTrezor": {
     "message": "Connect to Trezor"
   },
-  "connectToTrezorHelp": {
-    "message": "Metamask is able to access your TREZOR ethereum accounts. First make sure your device is connected and unlocked."
-  },
-  "connectToTrezorTrouble": {
-    "message": "If you are having trouble, please make sure you are using the latest version of the TREZOR firmware."
-  },
   "continue": {
     "message": "Continue"
   },
@@ -286,8 +286,8 @@
   "downloadStateLogs": {
     "message": "Download State Logs"
   },
-  "dontHaveATrezorWallet": {
-    "message": "Don't have a TREZOR hardware wallet?"
+  "dontHaveAHardwareWallet": {
+    "message": "Don’t have a hardware wallet?"
   },
   "dropped": {
     "message": "Dropped"
@@ -423,11 +423,11 @@
   "hardwareWalletConnected": {
     "message": "Hardware wallet connected"
   },
-  "hardwareSupport": {
-    "message": "Hardware Support"
+  "hardwareWallets": {
+    "message": "Connect a hardware wallet"
   },
-  "hardwareSupportMsg": {
-    "message": "You can now view your Hardware accounts in MetaMask!  Scroll down and read how it works."
+  "hardwareWalletsMsg": {
+    "message": "Select a hardware wallet you'd like to use with MetaMask"
   },
   "havingTroubleConnecting": {
     "message": "Having trouble connecting?"
@@ -535,6 +535,9 @@
   "learnMore": {
     "message": "Learn more"
   },
+  "ledgerAccountRestriction": {
+    "message": "You need to make use your last account before you can add a new one."
+  },
   "lessThanMax": {
     "message": "must be less than or equal to $1.",
     "description": "helper for inputting hex as decimal input"
@@ -656,6 +659,12 @@
   "notStarted": {
     "message": "Not Started"
   },
+  "noWebcamFoundTitle": {
+    "message": "Webcam not found"
+  },
+  "noWebcamFound": {
+    "message": "Your computer's webcam was not found. Please try again."
+  },
   "oldUI": {
     "message": "Old UI"
   },
@@ -899,7 +908,7 @@
     "description": "displays token symbol"
   },
   "orderOneHere": {
-    "message": "Order one here."
+    "message": "Order a Trezor or Ledger and keep your funds in cold storage"
   },
   "searchTokens": {
     "message": "Search Tokens"
@@ -911,7 +920,13 @@
     "message": "Select an Account"
   },
   "selectAnAccountHelp": {
-    "message": "These are the accounts available in your hardware wallet. Select the one you’d like to use in MetaMask."
+    "message": "Select the account to view in MetaMask"
+  },
+  "selectHdPath": {
+    "message": "Select HD Path"
+  },
+  "selectPathHelp": {
+    "message": "If you don't see your existing Ledger accounts below, try switching paths to \"Legacy (MEW / MyCrypto)\""
   },
   "sendTokensAnywhere": {
     "message": "Send Tokens to anyone with an Ethereum account"
@@ -940,6 +955,12 @@
   "info": {
   "message": "Info"
   },
+  "scanInstructions": {
+    "message": "Place the QR code in front of your camera"
+  },
+  "scanQrCode": {
+    "message": "Scan QR Code"
+  },
   "shapeshiftBuy": {
     "message": "Buy with Shapeshift"
   },
@@ -1059,6 +1080,9 @@
     "message": "We had trouble loading your token balances. You can view them ",
     "description": "Followed by a link (here) to view token balances"
   },
+  "tryAgain": {
+    "message": "Try again"
+  },
   "twelveWords": {
     "message": "These 12 words are the only way to restore your MetaMask accounts.\nSave them somewhere safe and secret."
   },
@@ -1069,7 +1093,7 @@
     "message": "Welcome to the New UI (Beta)"
   },
   "uiWelcomeMessage": {
-    "message": "You are now using the new Metamask UI."
+    "message": "You are now using the new MetaMask UI."
   },
   "unapproved": {
     "message": "Unapproved"
@@ -1089,6 +1113,15 @@
   "unknownNetworkId": {
     "message": "Unknown network ID"
   },
+  "unknownQrCode": {
+    "message": "Error: We couldn't identify that QR code"
+  },
+  "unknownCameraErrorTitle": {
+    "message": "Ooops! Something went wrong...."
+  },
+  "unknownCameraError": {
+    "message": "There was an error while trying to access you camera. Please try again..."
+  },
   "unlock": {
     "message": "Unlock"
   },
@@ -1135,6 +1168,9 @@
   "whatsThis": {
     "message": "What's this?"
   },
+  "youNeedToAllowCameraAccess": {
+    "message": "You need to allow camera access to use this feature."
+  },
   "yourSigRequested": {
     "message": "Your signature is being requested"
   },
diff --git a/app/_locales/es/messages.json b/app/_locales/es/messages.json
index f287674f1..ed7f8f681 100644
--- a/app/_locales/es/messages.json
+++ b/app/_locales/es/messages.json
@@ -75,7 +75,7 @@
     "message": "Pedir prestado con Dharma (Beta)"
   },
   "builtInCalifornia": {
-    "message": "Metamask fue diseñado y construido en California"
+    "message": "MetaMask fue diseñado y construido en California"
   },
   "buy": {
     "message": "Comprar"
@@ -874,7 +874,7 @@
     "message": "Advertencia"
   },
   "welcomeBeta": {
-    "message": "Bienvenido a Metamask Beta"
+    "message": "Bienvenido a MetaMask Beta"
   },
   "whatsThis": {
     "message": "¿Qué es esto?"
diff --git a/app/_locales/fr/messages.json b/app/_locales/fr/messages.json
index da2cfe4f8..1463e2b5f 100644
--- a/app/_locales/fr/messages.json
+++ b/app/_locales/fr/messages.json
@@ -63,7 +63,7 @@
     "message": "Acheter sur Coinbase"
   },
   "buyCoinbaseExplainer": {
-    "message": "Coinbase est le moyen le plus populaire au monde d'acheter et de vendre du bitcoin, de l'ethereum et du litecoin."
+    "message": "Coinbase est le moyen le plus populaire au monde d'acheter et de vendre du Bitcoin, de l'Ethereum et du Litecoin."
   },
   "cancel": {
     "message": "Annuler"
@@ -570,7 +570,7 @@
     "message": "Bienvenue dans la nouvelle interface utilisateur (Beta)"
   },
   "uiWelcomeMessage": {
-    "message": "Vous utilisez maintenant la nouvelle interface utilisateur Metamask. Jetez un coup d'oeil, essayez de nouvelles fonctionnalités comme l'envoi de jetons, et faites-nous savoir si vous avez des problèmes."
+    "message": "Vous utilisez maintenant la nouvelle interface utilisateur MetaMask. Jetez un coup d'oeil, essayez de nouvelles fonctionnalités comme l'envoi de jetons, et faites-nous savoir si vous avez des problèmes."
   },
   "unavailable": {
     "message": "Indisponible"
diff --git a/app/_locales/it/messages.json b/app/_locales/it/messages.json
index ef3ed4025..2ae5fae72 100644
--- a/app/_locales/it/messages.json
+++ b/app/_locales/it/messages.json
@@ -81,7 +81,7 @@
     "message": "Compra su Coinbase"
   },
   "buyCoinbaseExplainer": {
-    "message": "Coinbase è il servizio più popolare al mondo per comprare e vendere bitcoin, ethereum e litecoin."
+    "message": "Coinbase è il servizio più popolare al mondo per comprare e vendere Bitcoin, Ethereum e Litecoin."
   },
   "cancel": {
     "message": "Cancella"
@@ -178,7 +178,7 @@
     "message": "La rete predefinita per transazioni in Ether è la Rete Ethereum Principale."
   },
   "denExplainer": {
-    "message": "Il DEN è il tuo archivio crittato con password dentro Metamask."
+    "message": "Il DEN è il tuo archivio crittato con password dentro MetaMask."
   },
   "deposit": {
     "message": "Deposita"
@@ -816,4 +816,4 @@
   "youSign": {
     "message": "Ti stai connettendo"
   }
-}
\ No newline at end of file
+}
diff --git a/app/_locales/nl/messages.json b/app/_locales/nl/messages.json
index 38289f602..46847f1bf 100644
--- a/app/_locales/nl/messages.json
+++ b/app/_locales/nl/messages.json
@@ -81,7 +81,7 @@
     "message": "Koop op Coinbase"
   },
   "buyCoinbaseExplainer": {
-    "message": "Coinbase is 's werelds populairste manier om bitcoin, ethereum en litecoin te kopen en verkopen."
+    "message": "Coinbase is 's werelds populairste manier om Bitcoin, Ethereum en Litecoin te kopen en verkopen."
   },
   "cancel": {
     "message": "Annuleer"
@@ -435,7 +435,7 @@
     "message": "back-up woorden hebben alleen kleine letters"
   },
   "mainnet": {
-    "message": "belangrijkste ethereum-netwerk"
+    "message": "belangrijkste Ethereum-netwerk"
   },
   "message": {
     "message": "Bericht"
@@ -762,7 +762,7 @@
     "message": "Welkom bij de nieuwe gebruikersinterface (bèta)"
   },
   "uiWelcomeMessage": {
-    "message": "U gebruikt nu de nieuwe gebruikersinterface van Metamask. Kijk rond, probeer nieuwe functies uit zoals het verzenden van tokens en laat ons weten of u problemen ondervindt."
+    "message": "U gebruikt nu de nieuwe gebruikersinterface van MetaMask. Kijk rond, probeer nieuwe functies uit zoals het verzenden van tokens en laat ons weten of u problemen ondervindt."
   },
   "unavailable": {
     "message": "Niet beschikbaar"
diff --git a/app/_locales/ph/messages.json b/app/_locales/ph/messages.json
index 29d63be02..9a243447a 100644
--- a/app/_locales/ph/messages.json
+++ b/app/_locales/ph/messages.json
@@ -63,7 +63,7 @@
     "message": "Bumili sa Coinbase"
   },
   "buyCoinbaseExplainer": {
-    "message": "Ang Coinbase ang pinakasikat na paraan upang bumili at magbenta ng bitcoin, ethereum, at litecoin sa buong mundo."
+    "message": "Ang Coinbase ang pinakasikat na paraan upang bumili at magbenta ng Bitcoin, Ethereum, at Litecoin sa buong mundo."
   },
   "cancel": {
     "message": "Kanselahin"
diff --git a/app/_locales/pt/messages.json b/app/_locales/pt/messages.json
index e770392d0..6f0bb1584 100644
--- a/app/_locales/pt/messages.json
+++ b/app/_locales/pt/messages.json
@@ -81,7 +81,7 @@
     "message": "Comprar no Coinbase"
   },
   "buyCoinbaseExplainer": {
-    "message": "Coinbase é a forma mais conhecida para comprar e vender bitcoin, ethereum, e litecoin."
+    "message": "Coinbase é a forma mais conhecida para comprar e vender Bitcoin, Ethereum, e Litecoin."
   },
   "cancel": {
     "message": "Cancelar"
diff --git a/app/_locales/ru/messages.json b/app/_locales/ru/messages.json
index b43251064..bb722735d 100644
--- a/app/_locales/ru/messages.json
+++ b/app/_locales/ru/messages.json
@@ -84,7 +84,7 @@
     "message": "Купить на Coinbase"
   },
   "buyCoinbaseExplainer": {
-    "message": "Биржа Coinbase – это наиболее популярный способ купить или продать bitcoin, ethereum и litecoin."
+    "message": "Биржа Coinbase – это наиболее популярный способ купить или продать Bitcoin, Ethereum и Litecoin."
   },
   "ok": {
     "message": "ОК"
diff --git a/app/_locales/th/messages.json b/app/_locales/th/messages.json
index 3d7dec226..c9aaa0394 100644
--- a/app/_locales/th/messages.json
+++ b/app/_locales/th/messages.json
@@ -762,7 +762,7 @@
     "message": "ยินดีต้อนรับสู่หน้าตาใหม่ (เบต้า)"
   },
   "uiWelcomeMessage": {
-    "message": "ขณะนี้คุณใช้งาน Metamask หน้าตาใหม่แล้ว ลองใช้ความสามรถใหม่ ๆ เช่นการส่งโทเค็นและหากพบปัญหากรุณาแจ้งให้เราทราบ"
+    "message": "ขณะนี้คุณใช้งาน MetaMask หน้าตาใหม่แล้ว ลองใช้ความสามรถใหม่ ๆ เช่นการส่งโทเค็นและหากพบปัญหากรุณาแจ้งให้เราทราบ"
   },
   "unavailable": {
     "message": "ใช้งานไม่ได้"
diff --git a/app/_locales/tr/messages.json b/app/_locales/tr/messages.json
index c2c09bc91..08ba6cde8 100644
--- a/app/_locales/tr/messages.json
+++ b/app/_locales/tr/messages.json
@@ -84,7 +84,7 @@
       "message": "Coinbase'de satın al"
     },
     "buyCoinbaseExplainer": {
-      "message": "Coinbase bitcoin, ethereum, and litecoin alıp satmanın dünyadaki en popüler yolu"
+      "message": "Coinbase Bitcoin, Ethereum, and Litecoin alıp satmanın dünyadaki en popüler yolu"
     },
     "ok": {
       "message": "Tamam"
@@ -852,7 +852,7 @@
       "message": "Yeni UI (Beta)'ya hoşgeldiniz"
     },
     "uiWelcomeMessage": {
-      "message": "Şu anda yeni Metamask UI kullanmaktasınız. Gözatın, jeton gönderme gibi yeni özellikleri deneyin ve herhangi bir sorunlar karşılaşırsanız bize haber verin"
+      "message": "Şu anda yeni MetaMask UI kullanmaktasınız. Gözatın, jeton gönderme gibi yeni özellikleri deneyin ve herhangi bir sorunlar karşılaşırsanız bize haber verin"
     },
     "unapproved": {
       "message": "Onaylanmadı"
@@ -909,4 +909,4 @@
     "youSign": {
       "message": "İmzalıyorsunuz"
     }
-}
\ No newline at end of file
+}
diff --git a/app/_locales/vi/messages.json b/app/_locales/vi/messages.json
index cd30de4de..782dfd119 100644
--- a/app/_locales/vi/messages.json
+++ b/app/_locales/vi/messages.json
@@ -570,7 +570,7 @@
     "message": "Chào mừng bạn đến với giao diện mới (Beta)"
   },
   "uiWelcomeMessage": {
-    "message": "Bạn đang sử dụng giao diện mới của Metamask. Chúng tôi khuyến khích bạn thử nghiệm và khám phá các tính năng mới như gửi token, và nếu bạn có gặp phải vấn đề gì khó khăn, xin hãy liên hệ ngay để chúng tôi có thể giúp đỡ bạn."
+    "message": "Bạn đang sử dụng giao diện mới của MetaMask. Chúng tôi khuyến khích bạn thử nghiệm và khám phá các tính năng mới như gửi token, và nếu bạn có gặp phải vấn đề gì khó khăn, xin hãy liên hệ ngay để chúng tôi có thể giúp đỡ bạn."
   },
   "unavailable": {
     "message": "Không có sẵn"
diff --git a/app/_locales/zh_CN/messages.json b/app/_locales/zh_CN/messages.json
index 241ea948d..a39bba9da 100644
--- a/app/_locales/zh_CN/messages.json
+++ b/app/_locales/zh_CN/messages.json
@@ -879,7 +879,7 @@
     "message": "欢迎使用新版界面 （Beta）"
   },
   "uiWelcomeMessage": {
-      "message": "你现在正在使用新的 Metamask 界面。 尝试发送代币等新功能，有任何问题请告知我们。"
+      "message": "你现在正在使用新的 MetaMask 界面。 尝试发送代币等新功能，有任何问题请告知我们。"
   },
   "unapproved": {
     "message": "未批准"
diff --git a/app/_locales/zh_TW/messages.json b/app/_locales/zh_TW/messages.json
index 9aaee0e16..200c75c3c 100644
--- a/app/_locales/zh_TW/messages.json
+++ b/app/_locales/zh_TW/messages.json
@@ -362,7 +362,7 @@
     "message": "你想怎麼存入 Ether？"
   },
   "holdEther": {
-    "message": "Metamask 讓您能保存 ether 和代幣, 並成為您接觸分散式應用程式的途徑."
+    "message": "MetaMask 讓您能保存 ether 和代幣, 並成為您接觸分散式應用程式的途徑."
   },
   "import": {
     "message": "導入",
diff --git a/app/images/ledger-logo.svg b/app/images/ledger-logo.svg
new file mode 100644
index 000000000..21b99d0e5
--- /dev/null
+++ b/app/images/ledger-logo.svg
@@ -0,0 +1 @@
+<svg id="Layer_1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1916.3 516.8" width="2500" height="674"><style>.st0{fill:#333745}</style><g id="squares_1_"><path class="st0" d="M578.2 392.7V24.3h25.6v344.1h175.3v24.3H578.2zm327.5 5.1c-39.7 0-70.4-12.8-93.4-37.1-21.7-24.3-33.3-58.8-33.3-103.6 0-43.5 10.2-79.3 32-104.9 21.7-26.9 49.9-39.7 87-39.7 32 0 57.6 11.5 76.8 33.3 19.2 23 28.1 53.7 28.1 92.1v20.5H804.6c0 37.1 9 66.5 26.9 85.7 16.6 20.5 42.2 29.4 74.2 29.4 15.3 0 29.4-1.3 40.9-3.8 11.5-2.6 26.9-6.4 44.8-14.1v24.3c-15.3 6.4-29.4 11.5-42.2 14.1-14.3 2.6-28.9 3.9-43.5 3.8zM898 135.6c-26.9 0-47.3 9-64 25.6-15.3 17.9-25.6 42.2-28.1 75.5h168.9c0-32-6.4-56.3-20.5-74.2-12.8-18-32-26.9-56.3-26.9zm238-21.8c19.2 0 37.1 3.8 51.2 10.2 14.1 7.7 26.9 19.2 38.4 37.1h1.3c-1.3-21.7-1.3-42.2-1.3-62.7V0h24.3v392.7h-16.6l-6.4-42.2c-20.5 30.7-51.2 47.3-89.6 47.3s-66.5-11.5-87-35.8c-20.5-23-29.4-57.6-29.4-102.3 0-47.3 10.2-83.2 29.4-108.7 19.2-25.6 48.6-37.2 85.7-37.2zm0 21.8c-29.4 0-52.4 10.2-67.8 32-15.3 20.5-23 51.2-23 92.1 0 78 30.7 116.4 90.8 116.4 30.7 0 53.7-9 67.8-26.9 14.1-17.9 21.7-47.3 21.7-89.6v-3.8c0-42.2-7.7-72.9-21.7-90.8-12.8-20.5-35.8-29.4-67.8-29.4zm379.9-16.6v17.9l-56.3 3.8c15.3 19.2 23 39.7 23 61.4 0 26.9-9 47.3-26.9 64-17.9 16.6-40.9 24.3-70.4 24.3-12.8 0-21.7 0-25.6-1.3-10.2 5.1-17.9 11.5-23 17.9-5.1 7.7-7.7 14.1-7.7 23s3.8 15.3 10.2 19.2c6.4 3.8 17.9 6.4 33.3 6.4h47.3c29.4 0 52.4 6.4 67.8 17.9s24.3 29.4 24.3 53.7c0 29.4-11.5 51.2-34.5 66.5-23 15.3-56.3 23-99.8 23-34.5 0-61.4-6.4-80.6-20.5-19.2-12.8-28.1-32-28.1-55 0-19.2 6.4-34.5 17.9-47.3s28.1-20.5 47.3-25.6c-7.7-3.8-15.3-9-19.2-15.3-5-6.2-7.7-13.8-7.7-21.7 0-17.9 11.5-34.5 34.5-48.6-15.3-6.4-28.1-16.6-37.1-30.7-9-14.1-12.8-30.7-12.8-48.6 0-26.9 9-49.9 25.6-66.5 17.9-16.6 40.9-24.3 70.4-24.3 17.9 0 32 1.3 42.2 5.1h85.7v1.3h.2zm-222.6 319.8c0 37.1 28.1 56.3 84.4 56.3 71.6 0 107.5-23 107.5-69.1 0-16.6-5.1-28.1-16.6-35.8-11.5-7.7-29.4-11.5-55-11.5h-44.8c-49.9 1.2-75.5 20.4-75.5 60.1zm21.8-235.4c0 21.7 6.4 37.1 19.2 49.9 12.8 11.5 29.4 17.9 51.2 17.9 23 0 40.9-6.4 52.4-17.9 12.8-11.5 17.9-28.1 17.9-49.9 0-23-6.4-40.9-19.2-52.4-12.8-11.5-29.4-17.9-52.4-17.9-21.7 0-39.7 6.4-51.2 19.2-12.8 11.4-17.9 29.3-17.9 51.1z"/><path class="st0" d="M1640 397.8c-39.7 0-70.4-12.8-93.4-37.1-21.7-24.3-33.3-58.8-33.3-103.6 0-43.5 10.2-79.3 32-104.9 21.7-26.9 49.9-39.7 87-39.7 32 0 57.6 11.5 76.8 33.3 19.2 23 28.1 53.7 28.1 92.1v20.5h-197c0 37.1 9 66.5 26.9 85.7 16.6 20.5 42.2 29.4 74.2 29.4 15.3 0 29.4-1.3 40.9-3.8 11.5-2.6 26.9-6.4 44.8-14.1v24.3c-15.3 6.4-29.4 11.5-42.2 14.1-14.1 2.6-28.2 3.8-44.8 3.8zm-6.4-262.2c-26.9 0-47.3 9-64 25.6-15.3 17.9-25.6 42.2-28.1 75.5h168.9c0-32-6.4-56.3-20.5-74.2-12.8-18-32-26.9-56.3-26.9zm245.6-21.8c11.5 0 24.3 1.3 37.1 3.8l-5.1 24.3c-11.8-2.6-23.8-3.9-35.8-3.8-23 0-42.2 10.2-57.6 29.4-15.3 20.5-23 44.8-23 75.5v149.7h-25.6V119h21.7l2.6 49.9h1.3c11.5-20.5 23-34.5 35.8-42.2 15.4-9 30.7-12.9 48.6-12.9zM333.9 12.8h-183v245.6h245.6V76.7c.1-34.5-28.1-63.9-62.6-63.9zm-239.2 0H64c-34.5 0-64 28.1-64 64v30.7h94.7V12.8zM0 165h94.7v94.7H0V165zm301.9 245.6h30.7c34.5 0 64-28.1 64-64V316h-94.7v94.6zm-151-94.6h94.7v94.7h-94.7V316zM0 316v30.7c0 34.5 28.1 64 64 64h30.7V316H0z"/></g></svg>
\ No newline at end of file
diff --git a/app/images/metamask-fox.svg b/app/images/logo/metamask-fox.svg
index f3c24f79e..f3c24f79e 100644
--- a/app/images/metamask-fox.svg
+++ b/app/images/logo/metamask-fox.svg
diff --git a/app/images/logo/metamask-logo-horizontal-beta.svg b/app/images/logo/metamask-logo-horizontal-beta.svg
new file mode 100644
index 000000000..b1fa040ac
--- /dev/null
+++ b/app/images/logo/metamask-logo-horizontal-beta.svg
@@ -0,0 +1,115 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 22.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="Layer_1" xmlns:ev="http://www.w3.org/2001/xml-events"
+	 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 1672.1 241.2"
+	 style="enable-background:new 0 0 1672.1 241.2;" xml:space="preserve">
+<style type="text/css">
+	.st0{fill:#161616;}
+	.st1{fill:#E17726;stroke:#E17726;stroke-linecap:round;stroke-linejoin:round;}
+	.st2{fill:#E27625;stroke:#E27625;stroke-linecap:round;stroke-linejoin:round;}
+	.st3{fill:#D5BFB2;stroke:#D5BFB2;stroke-linecap:round;stroke-linejoin:round;}
+	.st4{fill:#233447;stroke:#233447;stroke-linecap:round;stroke-linejoin:round;}
+	.st5{fill:#CC6228;stroke:#CC6228;stroke-linecap:round;stroke-linejoin:round;}
+	.st6{fill:#E27525;stroke:#E27525;stroke-linecap:round;stroke-linejoin:round;}
+	.st7{fill:#F5841F;stroke:#F5841F;stroke-linecap:round;stroke-linejoin:round;}
+	.st8{fill:#C0AC9D;stroke:#C0AC9D;stroke-linecap:round;stroke-linejoin:round;}
+	.st9{fill:#161616;stroke:#161616;stroke-linecap:round;stroke-linejoin:round;}
+	.st10{fill:#763E1A;stroke:#763E1A;stroke-linecap:round;stroke-linejoin:round;}
+	.st11{fill:#F5841F;}
+</style>
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+</svg>
diff --git a/app/images/trezor-logo.svg b/app/images/trezor-logo.svg
new file mode 100644
index 000000000..b8d85e3af
--- /dev/null
+++ b/app/images/trezor-logo.svg
@@ -0,0 +1 @@
+<svg id="trezor" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 2567.5 722.3" width="2567.5" height="722.3"><style>.st0{display:none;fill:#fff;stroke:#000}</style><path id="rect25" class="st0" d="M1186 2932.6h46.2v147H1186v-147z"/><path id="path7" d="M249 0C149.9 0 69.7 80.2 69.7 179.3v67.2C34.9 252.8 0 261.2 0 272.1v350.7s0 9.7 10.9 14.3c39.5 16 194.9 71 230.6 83.6 4.6 1.7 5.9 1.7 7.1 1.7 1.7 0 2.5 0 7.1-1.7 35.7-12.6 191.5-67.6 231-83.6 10.1-4.2 10.5-13.9 10.5-13.9V272.1c0-10.9-34.4-19.7-69.3-25.6v-67.2C428.4 80.2 347.7 0 249 0zm0 85.7c58.4 0 93.7 35.3 93.7 93.7v58.4c-65.5-4.6-121.4-4.6-187.3 0v-58.4c0-58.5 35.3-93.7 93.6-93.7zm-.4 238.1c81.5 0 149.9 6.3 149.9 17.6v218.8c0 3.4-.4 3.8-3.4 5-2.9 1.3-139 50.4-139 50.4s-5.5 1.7-7.1 1.7c-1.7 0-7.1-2.1-7.1-2.1s-136.1-49.1-139-50.4-3.4-1.7-3.4-5V341c-.8-11.3 67.6-17.2 149.1-17.2z"/><g id="g3222" transform="translate(91.363 -287.434) scale(.95575)"><path id="path13" d="M666.6 890V639.3H575v-89.9h285.6v89.9h-90.7V890H666.6z"/><path id="path15" d="M1092 890l-47-107.1h-37.4V890H904.3V549.4h181.8c79.8 0 122.6 52.9 122.6 116.7 0 58.8-34 89.9-61.3 103.3l61.7 120.5H1092zm12.2-223.9c0-18.5-16.4-26.5-33.6-26.5h-63v53.8h63c17.2-.4 33.6-8.4 33.6-27.3z"/><path id="path17" d="M1262.9 890V549.4h258.3v89.9h-155.4v33.6h151.6v89.9h-151.6v37.4h155.4V890h-258.3z"/><path id="path19" d="M1574.9 890.4v-81.9l129.8-168.8h-129.8v-89.9h265.8v81.1l-130.2 169.7h134v89.9l-269.6-.1z"/><path id="path21" d="M1869.7 720.3c0-104.6 81.1-176.4 186.5-176.4 105 0 186.5 71.4 186.5 176.4 0 104.6-81.1 176-186.5 176s-186.5-71.4-186.5-176zm268 0c0-47.5-32.3-85.3-81.9-85.3-49.6 0-81.9 37.8-81.9 85.3s32.3 85.3 81.9 85.3c50 0 81.9-37.8 81.9-85.3z"/><path id="path23" d="M2473.6 890.4l-47-107.1h-37.4v107.1h-103.3V549.8h181.8c79.8 0 122.6 52.9 122.6 116.7 0 58.8-34 89.9-61.3 103.3l61.7 120.5h-117.1zm12.6-224.3c0-18.5-16.4-26.5-33.6-26.5h-63v53.8h63c17.3-.4 33.6-8.4 33.6-27.3z"/></g></svg>
\ No newline at end of file
diff --git a/app/images/webcam.svg b/app/images/webcam.svg
new file mode 100644
index 000000000..4b9b58148
--- /dev/null
+++ b/app/images/webcam.svg
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="53px" height="53px" viewBox="0 0 53 53" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <!-- Generator: Sketch 50.2 (55047) - http://www.bohemiancoding.com/sketch -->
+    <title>webcam</title>
+    <desc>Created with Sketch.</desc>
+    <defs></defs>
+    <g id="QR-Code-Scan" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <g id="Group-4-Copy" transform="translate(-482.000000, -218.000000)">
+            <g id="webcam" transform="translate(482.000000, 218.000000)">
+                <circle id="Oval" fill="#D5ECFA" cx="26.5" cy="26.5" r="26.5"></circle>
+                <g id="Group" transform="translate(14.000000, 19.000000)" fill="#259DE5">
+                    <rect id="Rectangle" x="0" y="0" width="18" height="16"></rect>
+                    <polygon id="Triangle" points="19 6.57142857 26 3 26 13 19 9.42857143"></polygon>
+                </g>
+            </g>
+        </g>
+    </g>
+</svg>
\ No newline at end of file
diff --git a/app/manifest.json b/app/manifest.json
index fb6f98001..1e12f35b4 100644
--- a/app/manifest.json
+++ b/app/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "__MSG_appName__",
   "short_name": "__MSG_appName__",
-  "version": "4.9.1",
+  "version": "4.9.3",
   "manifest_version": 2,
   "author": "https://metamask.io",
   "description": "__MSG_appDescription__",
diff --git a/app/scripts/background.js b/app/scripts/background.js
index 3d3afdd4e..c7395c810 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -19,7 +19,7 @@ const PortStream = require('./lib/port-stream.js')
 const createStreamSink = require('./lib/createStreamSink')
 const NotificationManager = require('./lib/notification-manager.js')
 const MetamaskController = require('./metamask-controller')
-const firstTimeState = require('./first-time-state')
+const rawFirstTimeState = require('./first-time-state')
 const setupRaven = require('./lib/setupRaven')
 const reportFailedTxToSentry = require('./lib/reportFailedTxToSentry')
 const setupMetamaskMeshMetrics = require('./lib/setupMetamaskMeshMetrics')
@@ -34,6 +34,9 @@ const {
   ENVIRONMENT_TYPE_FULLSCREEN,
 } = require('./lib/enums')
 
+// METAMASK_TEST_CONFIG is used in e2e tests to set the default network to localhost
+const firstTimeState = Object.assign({}, rawFirstTimeState, global.METAMASK_TEST_CONFIG)
+
 const STORAGE_KEY = 'metamask-config'
 const METAMASK_DEBUG = process.env.METAMASK_DEBUG
 
diff --git a/app/scripts/contentscript.js b/app/scripts/contentscript.js
index b7496f318..e0a2b0061 100644
--- a/app/scripts/contentscript.js
+++ b/app/scripts/contentscript.js
@@ -198,6 +198,6 @@ function blacklistedDomainCheck () {
  */
 function redirectToPhishingWarning () {
   console.log('MetaMask - routing to Phishing Warning component')
-  let extensionURL = extension.runtime.getURL('phishing.html')
+  const extensionURL = extension.runtime.getURL('phishing.html')
   window.location.href = extensionURL
 }
diff --git a/app/scripts/controllers/balance.js b/app/scripts/controllers/balance.js
index 4c97810a3..465751e61 100644
--- a/app/scripts/controllers/balance.js
+++ b/app/scripts/controllers/balance.js
@@ -80,7 +80,7 @@ class BalanceController {
       }
     })
     this.accountTracker.store.subscribe(update)
-    this.blockTracker.on('block', update)
+    this.blockTracker.on('latest', update)
   }
 
   /**
diff --git a/app/scripts/controllers/currency.js b/app/scripts/controllers/currency.js
index a93aff49b..d5bc5fe2b 100644
--- a/app/scripts/controllers/currency.js
+++ b/app/scripts/controllers/currency.js
@@ -1,4 +1,4 @@
-  const ObservableStore = require('obs-store')
+const ObservableStore = require('obs-store')
 const extend = require('xtend')
 const log = require('loglevel')
 
diff --git a/app/scripts/controllers/network/createInfuraClient.js b/app/scripts/controllers/network/createInfuraClient.js
new file mode 100644
index 000000000..41af4d9f9
--- /dev/null
+++ b/app/scripts/controllers/network/createInfuraClient.js
@@ -0,0 +1,25 @@
+const mergeMiddleware = require('json-rpc-engine/src/mergeMiddleware')
+const createBlockReEmitMiddleware = require('eth-json-rpc-middleware/block-reemit')
+const createBlockCacheMiddleware = require('eth-json-rpc-middleware/block-cache')
+const createInflightMiddleware = require('eth-json-rpc-middleware/inflight-cache')
+const createBlockTrackerInspectorMiddleware = require('eth-json-rpc-middleware/block-tracker-inspector')
+const providerFromMiddleware = require('eth-json-rpc-middleware/providerFromMiddleware')
+const createInfuraMiddleware = require('eth-json-rpc-infura')
+const BlockTracker = require('eth-block-tracker')
+
+module.exports = createInfuraClient
+
+function createInfuraClient ({ network }) {
+  const infuraMiddleware = createInfuraMiddleware({ network })
+  const blockProvider = providerFromMiddleware(infuraMiddleware)
+  const blockTracker = new BlockTracker({ provider: blockProvider })
+
+  const networkMiddleware = mergeMiddleware([
+    createBlockCacheMiddleware({ blockTracker }),
+    createInflightMiddleware(),
+    createBlockReEmitMiddleware({ blockTracker, provider: blockProvider }),
+    createBlockTrackerInspectorMiddleware({ blockTracker }),
+    infuraMiddleware,
+  ])
+  return { networkMiddleware, blockTracker }
+}
diff --git a/app/scripts/controllers/network/createJsonRpcClient.js b/app/scripts/controllers/network/createJsonRpcClient.js
new file mode 100644
index 000000000..40c353f7f
--- /dev/null
+++ b/app/scripts/controllers/network/createJsonRpcClient.js
@@ -0,0 +1,25 @@
+const mergeMiddleware = require('json-rpc-engine/src/mergeMiddleware')
+const createFetchMiddleware = require('eth-json-rpc-middleware/fetch')
+const createBlockRefMiddleware = require('eth-json-rpc-middleware/block-ref')
+const createBlockCacheMiddleware = require('eth-json-rpc-middleware/block-cache')
+const createInflightMiddleware = require('eth-json-rpc-middleware/inflight-cache')
+const createBlockTrackerInspectorMiddleware = require('eth-json-rpc-middleware/block-tracker-inspector')
+const providerFromMiddleware = require('eth-json-rpc-middleware/providerFromMiddleware')
+const BlockTracker = require('eth-block-tracker')
+
+module.exports = createJsonRpcClient
+
+function createJsonRpcClient ({ rpcUrl }) {
+  const fetchMiddleware = createFetchMiddleware({ rpcUrl })
+  const blockProvider = providerFromMiddleware(fetchMiddleware)
+  const blockTracker = new BlockTracker({ provider: blockProvider })
+
+  const networkMiddleware = mergeMiddleware([
+    createBlockRefMiddleware({ blockTracker }),
+    createBlockCacheMiddleware({ blockTracker }),
+    createInflightMiddleware(),
+    createBlockTrackerInspectorMiddleware({ blockTracker }),
+    fetchMiddleware,
+  ])
+  return { networkMiddleware, blockTracker }
+}
diff --git a/app/scripts/controllers/network/createLocalhostClient.js b/app/scripts/controllers/network/createLocalhostClient.js
new file mode 100644
index 000000000..fecc512e8
--- /dev/null
+++ b/app/scripts/controllers/network/createLocalhostClient.js
@@ -0,0 +1,21 @@
+const mergeMiddleware = require('json-rpc-engine/src/mergeMiddleware')
+const createFetchMiddleware = require('eth-json-rpc-middleware/fetch')
+const createBlockRefMiddleware = require('eth-json-rpc-middleware/block-ref')
+const createBlockTrackerInspectorMiddleware = require('eth-json-rpc-middleware/block-tracker-inspector')
+const providerFromMiddleware = require('eth-json-rpc-middleware/providerFromMiddleware')
+const BlockTracker = require('eth-block-tracker')
+
+module.exports = createLocalhostClient
+
+function createLocalhostClient () {
+  const fetchMiddleware = createFetchMiddleware({ rpcUrl: 'http://localhost:8545/' })
+  const blockProvider = providerFromMiddleware(fetchMiddleware)
+  const blockTracker = new BlockTracker({ provider: blockProvider, pollingInterval: 1000 })
+
+  const networkMiddleware = mergeMiddleware([
+    createBlockRefMiddleware({ blockTracker }),
+    createBlockTrackerInspectorMiddleware({ blockTracker }),
+    fetchMiddleware,
+  ])
+  return { networkMiddleware, blockTracker }
+}
diff --git a/app/scripts/controllers/network/createMetamaskMiddleware.js b/app/scripts/controllers/network/createMetamaskMiddleware.js
new file mode 100644
index 000000000..8b17829b7
--- /dev/null
+++ b/app/scripts/controllers/network/createMetamaskMiddleware.js
@@ -0,0 +1,43 @@
+const mergeMiddleware = require('json-rpc-engine/src/mergeMiddleware')
+const createScaffoldMiddleware = require('json-rpc-engine/src/createScaffoldMiddleware')
+const createAsyncMiddleware = require('json-rpc-engine/src/createAsyncMiddleware')
+const createWalletSubprovider = require('eth-json-rpc-middleware/wallet')
+
+module.exports = createMetamaskMiddleware
+
+function createMetamaskMiddleware ({
+  version,
+  getAccounts,
+  processTransaction,
+  processEthSignMessage,
+  processTypedMessage,
+  processPersonalMessage,
+  getPendingNonce,
+}) {
+  const metamaskMiddleware = mergeMiddleware([
+    createScaffoldMiddleware({
+      // staticSubprovider
+      eth_syncing: false,
+      web3_clientVersion: `MetaMask/v${version}`,
+    }),
+    createWalletSubprovider({
+      getAccounts,
+      processTransaction,
+      processEthSignMessage,
+      processTypedMessage,
+      processPersonalMessage,
+    }),
+    createPendingNonceMiddleware({ getPendingNonce }),
+  ])
+  return metamaskMiddleware
+}
+
+function createPendingNonceMiddleware ({ getPendingNonce }) {
+  return createAsyncMiddleware(async (req, res, next) => {
+    if (req.method !== 'eth_getTransactionCount') return next()
+    const address = req.params[0]
+    const blockRef = req.params[1]
+    if (blockRef !== 'pending') return next()
+    req.result = await getPendingNonce(address)
+  })
+}
diff --git a/app/scripts/controllers/network/network.js b/app/scripts/controllers/network/network.js
index b6f7705b5..76fdc3391 100644
--- a/app/scripts/controllers/network/network.js
+++ b/app/scripts/controllers/network/network.js
@@ -1,15 +1,17 @@
 const assert = require('assert')
 const EventEmitter = require('events')
-const createMetamaskProvider = require('web3-provider-engine/zero.js')
-const SubproviderFromProvider = require('web3-provider-engine/subproviders/provider.js')
-const createInfuraProvider = require('eth-json-rpc-infura/src/createProvider')
 const ObservableStore = require('obs-store')
 const ComposedStore = require('obs-store/lib/composed')
-const extend = require('xtend')
 const EthQuery = require('eth-query')
-const createEventEmitterProxy = require('../../lib/events-proxy.js')
+const JsonRpcEngine = require('json-rpc-engine')
+const providerFromEngine = require('eth-json-rpc-middleware/providerFromEngine')
 const log = require('loglevel')
-const urlUtil = require('url')
+const createMetamaskMiddleware = require('./createMetamaskMiddleware')
+const createInfuraClient = require('./createInfuraClient')
+const createJsonRpcClient = require('./createJsonRpcClient')
+const createLocalhostClient = require('./createLocalhostClient')
+const { createSwappableProxy, createEventEmitterProxy } = require('swappable-obj-proxy')
+
 const {
   ROPSTEN,
   RINKEBY,
@@ -17,7 +19,6 @@ const {
   MAINNET,
   LOCALHOST,
 } = require('./enums')
-const LOCALHOST_RPC_URL = 'http://localhost:8545'
 const INFURA_PROVIDER_TYPES = [ROPSTEN, RINKEBY, KOVAN, MAINNET]
 
 const env = process.env.METAMASK_ENV
@@ -39,21 +40,27 @@ module.exports = class NetworkController extends EventEmitter {
     this.providerStore = new ObservableStore(providerConfig)
     this.networkStore = new ObservableStore('loading')
     this.store = new ComposedStore({ provider: this.providerStore, network: this.networkStore })
-    // create event emitter proxy
-    this._proxy = createEventEmitterProxy()
-
     this.on('networkDidChange', this.lookupNetwork)
+    // provider and block tracker
+    this._provider = null
+    this._blockTracker = null
+    // provider and block tracker proxies - because the network changes
+    this._providerProxy = null
+    this._blockTrackerProxy = null
   }
 
-  initializeProvider (_providerParams) {
-    this._baseProviderParams = _providerParams
+  initializeProvider (providerParams) {
+    this._baseProviderParams = providerParams
     const { type, rpcTarget } = this.providerStore.getState()
     this._configureProvider({ type, rpcTarget })
-    this._proxy.on('block', this._logBlock.bind(this))
-    this._proxy.on('error', this.verifyNetwork.bind(this))
-    this.ethQuery = new EthQuery(this._proxy)
     this.lookupNetwork()
-    return this._proxy
+  }
+
+  // return the proxies so the references will always be good
+  getProviderAndBlockTracker () {
+    const provider = this._providerProxy
+    const blockTracker = this._blockTrackerProxy
+    return { provider, blockTracker }
   }
 
   verifyNetwork () {
@@ -75,10 +82,11 @@ module.exports = class NetworkController extends EventEmitter {
 
   lookupNetwork () {
     // Prevent firing when provider is not defined.
-    if (!this.ethQuery || !this.ethQuery.sendAsync) {
-      return log.warn('NetworkController - lookupNetwork aborted due to missing ethQuery')
+    if (!this._provider) {
+      return log.warn('NetworkController - lookupNetwork aborted due to missing provider')
     }
-    this.ethQuery.sendAsync({ method: 'net_version' }, (err, network) => {
+    const ethQuery = new EthQuery(this._provider)
+    ethQuery.sendAsync({ method: 'net_version' }, (err, network) => {
       if (err) return this.setNetworkState('loading')
       log.info('web3.getNetwork returned ' + network)
       this.setNetworkState(network)
@@ -131,7 +139,7 @@ module.exports = class NetworkController extends EventEmitter {
       this._configureInfuraProvider(opts)
     // other type-based rpc endpoints
     } else if (type === LOCALHOST) {
-      this._configureStandardProvider({ rpcUrl: LOCALHOST_RPC_URL })
+      this._configureLocalhostProvider()
     // url-based rpc endpoints
     } else if (type === 'rpc') {
       this._configureStandardProvider({ rpcUrl: rpcTarget })
@@ -141,49 +149,47 @@ module.exports = class NetworkController extends EventEmitter {
   }
 
   _configureInfuraProvider ({ type }) {
-    log.info('_configureInfuraProvider', type)
-    const infuraProvider = createInfuraProvider({ network: type })
-    const infuraSubprovider = new SubproviderFromProvider(infuraProvider)
-    const providerParams = extend(this._baseProviderParams, {
-      engineParams: {
-        pollingInterval: 8000,
-        blockTrackerProvider: infuraProvider,
-      },
-      dataSubprovider: infuraSubprovider,
-    })
-    const provider = createMetamaskProvider(providerParams)
-    this._setProvider(provider)
+    log.info('NetworkController - configureInfuraProvider', type)
+    const networkClient = createInfuraClient({ network: type })
+    this._setNetworkClient(networkClient)
+  }
+
+  _configureLocalhostProvider () {
+    log.info('NetworkController - configureLocalhostProvider')
+    const networkClient = createLocalhostClient()
+    this._setNetworkClient(networkClient)
   }
 
   _configureStandardProvider ({ rpcUrl }) {
-    // urlUtil handles malformed urls
-    rpcUrl = urlUtil.parse(rpcUrl).format()
-    const providerParams = extend(this._baseProviderParams, {
-      rpcUrl,
-      engineParams: {
-        pollingInterval: 8000,
-      },
-    })
-    const provider = createMetamaskProvider(providerParams)
-    this._setProvider(provider)
-  }
-
-  _setProvider (provider) {
-    // collect old block tracker events
-    const oldProvider = this._provider
-    let blockTrackerHandlers
-    if (oldProvider) {
-      // capture old block handlers
-      blockTrackerHandlers = oldProvider._blockTracker.proxyEventHandlers
-      // tear down
-      oldProvider.removeAllListeners()
-      oldProvider.stop()
+    log.info('NetworkController - configureStandardProvider', rpcUrl)
+    const networkClient = createJsonRpcClient({ rpcUrl })
+    this._setNetworkClient(networkClient)
+  }
+
+  _setNetworkClient ({ networkMiddleware, blockTracker }) {
+    const metamaskMiddleware = createMetamaskMiddleware(this._baseProviderParams)
+    const engine = new JsonRpcEngine()
+    engine.push(metamaskMiddleware)
+    engine.push(networkMiddleware)
+    const provider = providerFromEngine(engine)
+    this._setProviderAndBlockTracker({ provider, blockTracker })
+  }
+
+  _setProviderAndBlockTracker ({ provider, blockTracker }) {
+    // update or intialize proxies
+    if (this._providerProxy) {
+      this._providerProxy.setTarget(provider)
+    } else {
+      this._providerProxy = createSwappableProxy(provider)
+    }
+    if (this._blockTrackerProxy) {
+      this._blockTrackerProxy.setTarget(blockTracker)
+    } else {
+      this._blockTrackerProxy = createEventEmitterProxy(blockTracker)
     }
-    // override block tracler
-    provider._blockTracker = createEventEmitterProxy(provider._blockTracker, blockTrackerHandlers)
-    // set as new provider
+    // set new provider and blockTracker
     this._provider = provider
-    this._proxy.setTarget(provider)
+    this._blockTracker = blockTracker
   }
 
   _logBlock (block) {
diff --git a/app/scripts/controllers/recent-blocks.js b/app/scripts/controllers/recent-blocks.js
index 926268691..d270f6f44 100644
--- a/app/scripts/controllers/recent-blocks.js
+++ b/app/scripts/controllers/recent-blocks.js
@@ -1,14 +1,14 @@
 const ObservableStore = require('obs-store')
 const extend = require('xtend')
-const BN = require('ethereumjs-util').BN
 const EthQuery = require('eth-query')
 const log = require('loglevel')
+const pify = require('pify')
 
 class RecentBlocksController {
 
   /**
    * Controller responsible for storing, updating and managing the recent history of blocks. Blocks are back filled
-   * upon the controller's construction and then the list is updated when the given block tracker gets a 'block' event
+   * upon the controller's construction and then the list is updated when the given block tracker gets a 'latest' event
    * (indicating that there is a new block to process).
    *
    * @typedef {Object} RecentBlocksController
@@ -16,7 +16,7 @@ class RecentBlocksController {
    * @param {BlockTracker} opts.blockTracker Contains objects necessary for tracking blocks and querying the blockchain
    * @param {BlockTracker} opts.provider The provider used to create a new EthQuery instance.
    * @property {BlockTracker} blockTracker Points to the passed BlockTracker. On RecentBlocksController construction,
-   * listens for 'block' events so that new blocks can be processed and added to storage.
+   * listens for 'latest' events so that new blocks can be processed and added to storage.
    * @property {EthQuery} ethQuery Points to the EthQuery instance created with the passed provider
    * @property {number} historyLength The maximum length of blocks to track
    * @property {object} store Stores the recentBlocks
@@ -34,7 +34,13 @@ class RecentBlocksController {
     }, opts.initState)
     this.store = new ObservableStore(initState)
 
-    this.blockTracker.on('block', this.processBlock.bind(this))
+    this.blockTracker.on('latest', async (newBlockNumberHex) => {
+      try {
+        await this.processBlock(newBlockNumberHex)
+      } catch (err) {
+        log.error(err)
+      }
+    })
     this.backfill()
   }
 
@@ -55,7 +61,11 @@ class RecentBlocksController {
    * @param {object} newBlock The new block to modify and add to the recentBlocks array
    *
    */
-  processBlock (newBlock) {
+  async processBlock (newBlockNumberHex) {
+    const newBlockNumber = Number.parseInt(newBlockNumberHex, 16)
+    const newBlock = await this.getBlockByNumber(newBlockNumber, true)
+    if (!newBlock) return
+
     const block = this.mapTransactionsToPrices(newBlock)
 
     const state = this.store.getState()
@@ -108,9 +118,9 @@ class RecentBlocksController {
   }
 
   /**
-   * On this.blockTracker's first 'block' event after this RecentBlocksController's instantiation, the store.recentBlocks
+   * On this.blockTracker's first 'latest' event after this RecentBlocksController's instantiation, the store.recentBlocks
    * array is populated with this.historyLength number of blocks. The block number of the this.blockTracker's first
-   * 'block' event is used to iteratively generate all the numbers of the previous blocks, which are obtained by querying
+   * 'latest' event is used to iteratively generate all the numbers of the previous blocks, which are obtained by querying
    * the blockchain. These blocks are backfilled so that the recentBlocks array is ordered from oldest to newest.
    *
    * Each iteration over the block numbers is delayed by 100 milliseconds.
@@ -118,18 +128,17 @@ class RecentBlocksController {
    * @returns {Promise<void>} Promises undefined
    */
   async backfill () {
-    this.blockTracker.once('block', async (block) => {
-      const currentBlockNumber = Number.parseInt(block.number, 16)
+    this.blockTracker.once('latest', async (blockNumberHex) => {
+      const currentBlockNumber = Number.parseInt(blockNumberHex, 16)
       const blocksToFetch = Math.min(currentBlockNumber, this.historyLength)
       const prevBlockNumber = currentBlockNumber - 1
       const targetBlockNumbers = Array(blocksToFetch).fill().map((_, index) => prevBlockNumber - index)
       await Promise.all(targetBlockNumbers.map(async (targetBlockNumber) => {
         try {
-          const newBlock = await this.getBlockByNumber(targetBlockNumber)
+          const newBlock = await this.getBlockByNumber(targetBlockNumber, true)
+          if (!newBlock) return
 
-          if (newBlock) {
-            this.backfillBlock(newBlock)
-          }
+          this.backfillBlock(newBlock)
         } catch (e) {
           log.error(e)
         }
@@ -138,18 +147,6 @@ class RecentBlocksController {
   }
 
   /**
-   * A helper for this.backfill. Provides an easy way to ensure a 100 millisecond delay using await
-   *
-   * @returns {Promise<void>} Promises undefined
-   *
-   */
-  async wait () {
-    return new Promise((resolve) => {
-      setTimeout(resolve, 100)
-    })
-  }
-
-  /**
    * Uses EthQuery to get a block that has a given block number.
    *
    * @param {number} number The number of the block to get
@@ -157,13 +154,8 @@ class RecentBlocksController {
    *
    */
   async getBlockByNumber (number) {
-    const bn = new BN(number)
-    return new Promise((resolve, reject) => {
-      this.ethQuery.getBlockByNumber('0x' + bn.toString(16), true, (err, block) => {
-        if (err) reject(err)
-        resolve(block)
-      })
-    })
+    const blockNumberHex = '0x' + number.toString(16)
+    return await pify(this.ethQuery.getBlockByNumber).call(this.ethQuery, blockNumberHex, true)
   }
 
 }
diff --git a/app/scripts/controllers/transactions/index.js b/app/scripts/controllers/transactions/index.js
index 8e2288aed..5d7d6d6da 100644
--- a/app/scripts/controllers/transactions/index.js
+++ b/app/scripts/controllers/transactions/index.js
@@ -65,6 +65,7 @@ class TransactionController extends EventEmitter {
     this.store = this.txStateManager.store
     this.nonceTracker = new NonceTracker({
       provider: this.provider,
+      blockTracker: this.blockTracker,
       getPendingTransactions: this.txStateManager.getPendingTransactions.bind(this.txStateManager),
       getConfirmedTransactions: this.txStateManager.getConfirmedTransactions.bind(this.txStateManager),
     })
@@ -78,13 +79,17 @@ class TransactionController extends EventEmitter {
     })
 
     this.txStateManager.store.subscribe(() => this.emit('update:badge'))
-    this._setupListners()
+    this._setupListeners()
     // memstore is computed from a few different stores
     this._updateMemstore()
     this.txStateManager.store.subscribe(() => this._updateMemstore())
     this.networkStore.subscribe(() => this._updateMemstore())
     this.preferencesStore.subscribe(() => this._updateMemstore())
+
+    // request state update to finalize initialization
+    this._updatePendingTxsAfterFirstBlock()
   }
+
   /** @returns {number} the chainId*/
   getChainId () {
     const networkState = this.networkStore.getState()
@@ -311,6 +316,11 @@ class TransactionController extends EventEmitter {
     this.txStateManager.setTxStatusSubmitted(txId)
   }
 
+  confirmTransaction (txId) {
+    this.txStateManager.setTxStatusConfirmed(txId)
+    this._markNonceDuplicatesDropped(txId)
+  }
+
   /**
     Convenience method for the ui thats sets the transaction to rejected
     @param txId {number} - the tx's Id
@@ -354,6 +364,14 @@ class TransactionController extends EventEmitter {
     this.getFilteredTxList = (opts) => this.txStateManager.getFilteredTxList(opts)
   }
 
+  // called once on startup
+  async _updatePendingTxsAfterFirstBlock () {
+    // wait for first block so we know we're ready
+    await this.blockTracker.getLatestBlock()
+    // get status update for all pending transactions (for the current network)
+    await this.pendingTxTracker.updatePendingTxs()
+  }
+
   /**
     If transaction controller was rebooted with transactions that are uncompleted
     in steps of the transaction signing or user confirmation process it will either
@@ -386,14 +404,14 @@ class TransactionController extends EventEmitter {
     is called in constructor applies the listeners for pendingTxTracker txStateManager
     and blockTracker
   */
-  _setupListners () {
+  _setupListeners () {
     this.txStateManager.on('tx:status-update', this.emit.bind(this, 'tx:status-update'))
+    this._setupBlockTrackerListener()
     this.pendingTxTracker.on('tx:warning', (txMeta) => {
       this.txStateManager.updateTx(txMeta, 'transactions/pending-tx-tracker#event: tx:warning')
     })
-    this.pendingTxTracker.on('tx:confirmed', (txId) => this.txStateManager.setTxStatusConfirmed(txId))
-    this.pendingTxTracker.on('tx:confirmed', (txId) => this._markNonceDuplicatesDropped(txId))
     this.pendingTxTracker.on('tx:failed', this.txStateManager.setTxStatusFailed.bind(this.txStateManager))
+    this.pendingTxTracker.on('tx:confirmed', (txId) => this.confirmTransaction(txId))
     this.pendingTxTracker.on('tx:block-update', (txMeta, latestBlockNumber) => {
       if (!txMeta.firstRetryBlockNumber) {
         txMeta.firstRetryBlockNumber = latestBlockNumber
@@ -405,13 +423,6 @@ class TransactionController extends EventEmitter {
       txMeta.retryCount++
       this.txStateManager.updateTx(txMeta, 'transactions/pending-tx-tracker#event: tx:retry')
     })
-
-    this.blockTracker.on('block', this.pendingTxTracker.checkForTxInBlock.bind(this.pendingTxTracker))
-    // this is a little messy but until ethstore has been either
-    // removed or redone this is to guard against the race condition
-    this.blockTracker.on('latest', this.pendingTxTracker.resubmitPendingTxs.bind(this.pendingTxTracker))
-    this.blockTracker.on('sync', this.pendingTxTracker.queryPendingTxs.bind(this.pendingTxTracker))
-
   }
 
   /**
@@ -435,6 +446,40 @@ class TransactionController extends EventEmitter {
     })
   }
 
+  _setupBlockTrackerListener () {
+    let listenersAreActive = false
+    const latestBlockHandler = this._onLatestBlock.bind(this)
+    const blockTracker = this.blockTracker
+    const txStateManager = this.txStateManager
+
+    txStateManager.on('tx:status-update', updateSubscription)
+    updateSubscription()
+
+    function updateSubscription () {
+      const pendingTxs = txStateManager.getPendingTransactions()
+      if (!listenersAreActive && pendingTxs.length > 0) {
+        blockTracker.on('latest', latestBlockHandler)
+        listenersAreActive = true
+      } else if (listenersAreActive && !pendingTxs.length) {
+        blockTracker.removeListener('latest', latestBlockHandler)
+        listenersAreActive = false
+      }
+    }
+  }
+
+  async _onLatestBlock (blockNumber) {
+    try {
+      await this.pendingTxTracker.updatePendingTxs()
+    } catch (err) {
+      log.error(err)
+    }
+    try {
+      await this.pendingTxTracker.resubmitPendingTxs(blockNumber)
+    } catch (err) {
+      log.error(err)
+    }
+  }
+
   /**
     Updates the memStore in transaction controller
   */
diff --git a/app/scripts/controllers/transactions/nonce-tracker.js b/app/scripts/controllers/transactions/nonce-tracker.js
index 06f336eaa..421036368 100644
--- a/app/scripts/controllers/transactions/nonce-tracker.js
+++ b/app/scripts/controllers/transactions/nonce-tracker.js
@@ -12,8 +12,9 @@ const Mutex = require('await-semaphore').Mutex
 */
 class NonceTracker {
 
-  constructor ({ provider, getPendingTransactions, getConfirmedTransactions }) {
+  constructor ({ provider, blockTracker, getPendingTransactions, getConfirmedTransactions }) {
     this.provider = provider
+    this.blockTracker = blockTracker
     this.ethQuery = new EthQuery(provider)
     this.getPendingTransactions = getPendingTransactions
     this.getConfirmedTransactions = getConfirmedTransactions
@@ -34,7 +35,7 @@ class NonceTracker {
    * @typedef NonceDetails
    * @property {number} highestLocallyConfirmed - A hex string of the highest nonce on a confirmed transaction.
    * @property {number} nextNetworkNonce - The next nonce suggested by the eth_getTransactionCount method.
-   * @property {number} highetSuggested - The maximum between the other two, the number returned.
+   * @property {number} highestSuggested - The maximum between the other two, the number returned.
    */
 
   /**
@@ -80,15 +81,6 @@ class NonceTracker {
     }
   }
 
-  async _getCurrentBlock () {
-    const blockTracker = this._getBlockTracker()
-    const currentBlock = blockTracker.getCurrentBlock()
-    if (currentBlock) return currentBlock
-    return await new Promise((reject, resolve) => {
-      blockTracker.once('latest', resolve)
-    })
-  }
-
   async _globalMutexFree () {
     const globalMutex = this._lookupMutex('global')
     const releaseLock = await globalMutex.acquire()
@@ -114,9 +106,8 @@ class NonceTracker {
     // calculate next nonce
     // we need to make sure our base count
     // and pending count are from the same block
-    const currentBlock = await this._getCurrentBlock()
-    const blockNumber = currentBlock.blockNumber
-    const baseCountBN = await this.ethQuery.getTransactionCount(address, blockNumber || 'latest')
+    const blockNumber = await this.blockTracker.getLatestBlock()
+    const baseCountBN = await this.ethQuery.getTransactionCount(address, blockNumber)
     const baseCount = baseCountBN.toNumber()
     assert(Number.isInteger(baseCount), `nonce-tracker - baseCount is not an integer - got: (${typeof baseCount}) "${baseCount}"`)
     const nonceDetails = { blockNumber, baseCount }
@@ -165,15 +156,6 @@ class NonceTracker {
     return { name: 'local', nonce: highest, details: { startPoint, highest } }
   }
 
-  // this is a hotfix for the fact that the blockTracker will
-  // change when the network changes
-
-  /**
-    @returns {Object} the current blockTracker
-  */
-  _getBlockTracker () {
-    return this.provider._blockTracker
-  }
 }
 
 module.exports = NonceTracker
diff --git a/app/scripts/controllers/transactions/pending-tx-tracker.js b/app/scripts/controllers/transactions/pending-tx-tracker.js
index 4e41cdaf8..70cac096b 100644
--- a/app/scripts/controllers/transactions/pending-tx-tracker.js
+++ b/app/scripts/controllers/transactions/pending-tx-tracker.js
@@ -1,6 +1,7 @@
 const EventEmitter = require('events')
 const log = require('loglevel')
 const EthQuery = require('ethjs-query')
+
 /**
 
   Event emitter utility class for tracking the transactions as they<br>
@@ -23,55 +24,26 @@ class PendingTransactionTracker extends EventEmitter {
     super()
     this.query = new EthQuery(config.provider)
     this.nonceTracker = config.nonceTracker
-    // default is one day
     this.getPendingTransactions = config.getPendingTransactions
     this.getCompletedTransactions = config.getCompletedTransactions
     this.publishTransaction = config.publishTransaction
-    this._checkPendingTxs()
+    this.confirmTransaction = config.confirmTransaction
   }
 
   /**
-    checks if a signed tx is in a block and
-    if it is included emits tx status as 'confirmed'
-    @param block {object}, a full block
-    @emits tx:confirmed
-    @emits tx:failed
-  */
-  checkForTxInBlock (block) {
-    const signedTxList = this.getPendingTransactions()
-    if (!signedTxList.length) return
-    signedTxList.forEach((txMeta) => {
-      const txHash = txMeta.hash
-      const txId = txMeta.id
-
-      if (!txHash) {
-        const noTxHashErr = new Error('We had an error while submitting this transaction, please try again.')
-        noTxHashErr.name = 'NoTxHashError'
-        this.emit('tx:failed', txId, noTxHashErr)
-        return
-      }
-
-
-      block.transactions.forEach((tx) => {
-        if (tx.hash === txHash) this.emit('tx:confirmed', txId)
-      })
-    })
-  }
-
-  /**
-    asks the network for the transaction to see if a block number is included on it
-    if we have skipped/missed blocks
-    @param object - oldBlock newBlock
+    checks the network for signed txs and releases the nonce global lock if it is
   */
-  queryPendingTxs ({ oldBlock, newBlock }) {
-    // check pending transactions on start
-    if (!oldBlock) {
-      this._checkPendingTxs()
-      return
+  async updatePendingTxs () {
+    // in order to keep the nonceTracker accurate we block it while updating pending transactions
+    const nonceGlobalLock = await this.nonceTracker.getGlobalLock()
+    try {
+      const pendingTxs = this.getPendingTransactions()
+      await Promise.all(pendingTxs.map((txMeta) => this._checkPendingTx(txMeta)))
+    } catch (err) {
+      log.error('PendingTransactionTracker - Error updating pending transactions')
+      log.error(err)
     }
-    // if we synced by more than one block, check for missed pending transactions
-    const diff = Number.parseInt(newBlock.number, 16) - Number.parseInt(oldBlock.number, 16)
-    if (diff > 1) this._checkPendingTxs()
+    nonceGlobalLock.releaseLock()
   }
 
   /**
@@ -79,11 +51,11 @@ class PendingTransactionTracker extends EventEmitter {
     @param block {object} - a block object
     @emits tx:warning
   */
-  resubmitPendingTxs (block) {
+  resubmitPendingTxs (blockNumber) {
     const pending = this.getPendingTransactions()
     // only try resubmitting if their are transactions to resubmit
     if (!pending.length) return
-    pending.forEach((txMeta) => this._resubmitTx(txMeta, block.number).catch((err) => {
+    pending.forEach((txMeta) => this._resubmitTx(txMeta, blockNumber).catch((err) => {
       /*
       Dont marked as failed if the error is a "known" transaction warning
       "there is already a transaction with the same sender-nonce
@@ -145,6 +117,7 @@ class PendingTransactionTracker extends EventEmitter {
     this.emit('tx:retry', txMeta)
     return txHash
   }
+
   /**
     Ask the network for the transaction to see if it has been include in a block
     @param txMeta {Object} - the txMeta object
@@ -174,9 +147,8 @@ class PendingTransactionTracker extends EventEmitter {
     }
 
     // get latest transaction status
-    let txParams
     try {
-      txParams = await this.query.getTransactionByHash(txHash)
+      const txParams = await this.query.getTransactionByHash(txHash)
       if (!txParams) return
       if (txParams.blockNumber) {
         this.emit('tx:confirmed', txId)
@@ -191,26 +163,12 @@ class PendingTransactionTracker extends EventEmitter {
   }
 
   /**
-    checks the network for signed txs and releases the nonce global lock if it is
-  */
-  async _checkPendingTxs () {
-    const signedTxList = this.getPendingTransactions()
-    // in order to keep the nonceTracker accurate we block it while updating pending transactions
-    const { releaseLock } = await this.nonceTracker.getGlobalLock()
-    try {
-      await Promise.all(signedTxList.map((txMeta) => this._checkPendingTx(txMeta)))
-    } catch (err) {
-      log.error('PendingTransactionWatcher - Error updating pending transactions')
-      log.error(err)
-    }
-    releaseLock()
-  }
-
-  /**
     checks to see if a confirmed txMeta has the same nonce
     @param txMeta {Object} - txMeta object
     @returns {boolean}
   */
+
+
   async _checkIfNonceIsTaken (txMeta) {
     const address = txMeta.txParams.from
     const completed = this.getCompletedTransactions(address)
diff --git a/app/scripts/controllers/transactions/tx-gas-utils.js b/app/scripts/controllers/transactions/tx-gas-utils.js
index 5cd0f5407..3dd45507f 100644
--- a/app/scripts/controllers/transactions/tx-gas-utils.js
+++ b/app/scripts/controllers/transactions/tx-gas-utils.js
@@ -25,7 +25,7 @@ class TxGasUtil {
     @returns {object} the txMeta object with the gas written to the txParams
   */
   async analyzeGasUsage (txMeta) {
-    const block = await this.query.getBlockByNumber('latest', true)
+    const block = await this.query.getBlockByNumber('latest', false)
     let estimatedGasHex
     try {
       estimatedGasHex = await this.estimateTxGas(txMeta, block.gasLimit)
diff --git a/app/scripts/lib/account-tracker.js b/app/scripts/lib/account-tracker.js
index 0f7b3d865..b7e2c7cbe 100644
--- a/app/scripts/lib/account-tracker.js
+++ b/app/scripts/lib/account-tracker.js
@@ -7,14 +7,13 @@
  * on each new block.
  */
 
-const async = require('async')
 const EthQuery = require('eth-query')
 const ObservableStore = require('obs-store')
-const EventEmitter = require('events').EventEmitter
-function noop () {}
+const log = require('loglevel')
+const pify = require('pify')
 
 
-class AccountTracker extends EventEmitter {
+class AccountTracker {
 
   /**
    * This module is responsible for tracking any number of accounts and caching their current balances & transaction
@@ -35,8 +34,6 @@ class AccountTracker extends EventEmitter {
    *
    */
   constructor (opts = {}) {
-    super()
-
     const initState = {
       accounts: {},
       currentBlockGasLimit: '',
@@ -44,12 +41,12 @@ class AccountTracker extends EventEmitter {
     this.store = new ObservableStore(initState)
 
     this._provider = opts.provider
-    this._query = new EthQuery(this._provider)
+    this._query = pify(new EthQuery(this._provider))
     this._blockTracker = opts.blockTracker
     // subscribe to latest block
-    this._blockTracker.on('block', this._updateForBlock.bind(this))
+    this._blockTracker.on('latest', this._updateForBlock.bind(this))
     // blockTracker.currentBlock may be null
-    this._currentBlockNumber = this._blockTracker.currentBlock
+    this._currentBlockNumber = this._blockTracker.getCurrentBlock()
   }
 
   /**
@@ -67,49 +64,57 @@ class AccountTracker extends EventEmitter {
     const accounts = this.store.getState().accounts
     const locals = Object.keys(accounts)
 
-    const toAdd = []
+    const accountsToAdd = []
     addresses.forEach((upstream) => {
       if (!locals.includes(upstream)) {
-        toAdd.push(upstream)
+        accountsToAdd.push(upstream)
       }
     })
 
-    const toRemove = []
+    const accountsToRemove = []
     locals.forEach((local) => {
       if (!addresses.includes(local)) {
-        toRemove.push(local)
+        accountsToRemove.push(local)
       }
     })
 
-    toAdd.forEach(upstream => this.addAccount(upstream))
-    toRemove.forEach(local => this.removeAccount(local))
-    this._updateAccounts()
+    this.addAccounts(accountsToAdd)
+    this.removeAccount(accountsToRemove)
   }
 
   /**
-   * Adds a new address to this AccountTracker's accounts object, which points to an empty object. This object will be
+   * Adds new addresses to track the balances of
    * given a balance as long this._currentBlockNumber is defined.
    *
-   * @param {string} address A hex address of a new account to store in this AccountTracker's accounts object
+   * @param {array} addresses An array of hex addresses of new accounts to track
    *
    */
-  addAccount (address) {
+  addAccounts (addresses) {
     const accounts = this.store.getState().accounts
-    accounts[address] = {}
+    // add initial state for addresses
+    addresses.forEach(address => {
+      accounts[address] = {}
+    })
+    // save accounts state
     this.store.updateState({ accounts })
+    // fetch balances for the accounts if there is block number ready
     if (!this._currentBlockNumber) return
-    this._updateAccount(address)
+    addresses.forEach(address => this._updateAccount(address))
   }
 
   /**
-   * Removes an account from this AccountTracker's accounts object
+   * Removes accounts from being tracked
    *
-   * @param {string} address A hex address of a the account to remove
+   * @param {array} an array of hex addresses to stop tracking
    *
    */
-  removeAccount (address) {
+  removeAccount (addresses) {
     const accounts = this.store.getState().accounts
-    delete accounts[address]
+    // remove each state object
+    addresses.forEach(address => {
+      delete accounts[address]
+    })
+    // save accounts state
     this.store.updateState({ accounts })
   }
 
@@ -118,71 +123,56 @@ class AccountTracker extends EventEmitter {
    * via EthQuery
    *
    * @private
-   * @param {object} block Data about the block that contains the data to update to.
+   * @param {number} blockNumber the block number to update to.
    * @fires 'block' The updated state, if all account updates are successful
    *
    */
-  _updateForBlock (block) {
-    this._currentBlockNumber = block.number
-    const currentBlockGasLimit = block.gasLimit
+  async _updateForBlock (blockNumber) {
+    this._currentBlockNumber = blockNumber
 
+    // block gasLimit polling shouldn't be in account-tracker shouldn't be here...
+    const currentBlock = await this._query.getBlockByNumber(blockNumber, false)
+    if (!currentBlock) return
+    const currentBlockGasLimit = currentBlock.gasLimit
     this.store.updateState({ currentBlockGasLimit })
 
-    async.parallel([
-      this._updateAccounts.bind(this),
-    ], (err) => {
-      if (err) return console.error(err)
-      this.emit('block', this.store.getState())
-    })
+    try {
+      await this._updateAccounts()
+    } catch (err) {
+      log.error(err)
+    }
   }
 
   /**
    * Calls this._updateAccount for each account in this.store
    *
-   * @param {Function} cb A callback to pass to this._updateAccount, called after each account is successfully updated
+   * @returns {Promise} after all account balances updated
    *
    */
-  _updateAccounts (cb = noop) {
+  async _updateAccounts () {
     const accounts = this.store.getState().accounts
     const addresses = Object.keys(accounts)
-    async.each(addresses, this._updateAccount.bind(this), cb)
+    await Promise.all(addresses.map(this._updateAccount.bind(this)))
   }
 
   /**
-   * Updates the current balance of an account. Gets an updated balance via this._getAccount.
+   * Updates the current balance of an account.
    *
    * @private
    * @param {string} address A hex address of a the account to be updated
-   * @param {Function} cb A callback to call once the account at address is successfully update
+   * @returns {Promise} after the account balance is updated
    *
    */
-  _updateAccount (address, cb = noop) {
-    this._getAccount(address, (err, result) => {
-      if (err) return cb(err)
-      result.address = address
-      const accounts = this.store.getState().accounts
-      // only populate if the entry is still present
-      if (accounts[address]) {
-        accounts[address] = result
-        this.store.updateState({ accounts })
-      }
-      cb(null, result)
-    })
-  }
-
-  /**
-   * Gets the current balance of an account via EthQuery.
-   *
-   * @private
-   * @param {string} address A hex address of a the account to query
-   * @param {Function} cb A callback to call once the account at address is successfully update
-   *
-   */
-  _getAccount (address, cb = noop) {
-    const query = this._query
-    async.parallel({
-      balance: query.getBalance.bind(query, address),
-    }, cb)
+  async _updateAccount (address) {
+    // query balance
+    const balance = await this._query.getBalance(address)
+    const result = { address, balance }
+    // update accounts state
+    const { accounts } = this.store.getState()
+    // only populate if the entry is still present
+    if (!accounts[address]) return
+    accounts[address] = result
+    this.store.updateState({ accounts })
   }
 
 }
diff --git a/app/scripts/lib/enums.js b/app/scripts/lib/enums.js
index 0a3afca47..c6d57a1bc 100644
--- a/app/scripts/lib/enums.js
+++ b/app/scripts/lib/enums.js
@@ -2,8 +2,19 @@ const ENVIRONMENT_TYPE_POPUP = 'popup'
 const ENVIRONMENT_TYPE_NOTIFICATION = 'notification'
 const ENVIRONMENT_TYPE_FULLSCREEN = 'fullscreen'
 
+const PLATFORM_BRAVE = 'Brave'
+const PLATFORM_CHROME = 'Chrome'
+const PLATFORM_EDGE = 'Edge'
+const PLATFORM_FIREFOX = 'Firefox'
+const PLATFORM_OPERA = 'Opera'
+
 module.exports = {
   ENVIRONMENT_TYPE_POPUP,
   ENVIRONMENT_TYPE_NOTIFICATION,
   ENVIRONMENT_TYPE_FULLSCREEN,
+  PLATFORM_BRAVE,
+  PLATFORM_CHROME,
+  PLATFORM_EDGE,
+  PLATFORM_FIREFOX,
+  PLATFORM_OPERA,
 }
diff --git a/app/scripts/lib/events-proxy.js b/app/scripts/lib/events-proxy.js
deleted file mode 100644
index f83773ccc..000000000
--- a/app/scripts/lib/events-proxy.js
+++ /dev/null
@@ -1,42 +0,0 @@
-/**
- * Returns an EventEmitter that proxies events from the given event emitter
- * @param {any} eventEmitter
- * @param {object} listeners - The listeners to proxy to
- * @returns {any}
- */
-module.exports = function createEventEmitterProxy (eventEmitter, listeners) {
-  let target = eventEmitter
-  const eventHandlers = listeners || {}
-  const proxy = /** @type {any} */ (new Proxy({}, {
-    get: (_, name) => {
-      // intercept listeners
-      if (name === 'on') return addListener
-      if (name === 'setTarget') return setTarget
-      if (name === 'proxyEventHandlers') return eventHandlers
-      return (/** @type {any} */ (target))[name]
-    },
-    set: (_, name, value) => {
-      target[name] = value
-      return true
-    },
-  }))
-  function setTarget (/** @type {EventEmitter} */ eventEmitter) {
-    target = eventEmitter
-    // migrate listeners
-    Object.keys(eventHandlers).forEach((name) => {
-      /** @type {Array<Function>} */ (eventHandlers[name]).forEach((handler) => target.on(name, handler))
-    })
-  }
-  /**
-   * Attaches a function to be called whenever the specified event is emitted
-   * @param {string} name
-   * @param {Function} handler
-   */
-  function addListener (name, handler) {
-    if (!eventHandlers[name]) eventHandlers[name] = []
-    eventHandlers[name].push(handler)
-    target.on(name, handler)
-  }
-  if (listeners) proxy.setTarget(eventEmitter)
-  return proxy
-}
diff --git a/app/scripts/lib/message-manager.js b/app/scripts/lib/message-manager.js
index 901367f04..47925b94b 100644
--- a/app/scripts/lib/message-manager.js
+++ b/app/scripts/lib/message-manager.js
@@ -69,10 +69,39 @@ module.exports = class MessageManager extends EventEmitter {
    * new Message to this.messages, and to save the unapproved Messages from that list to this.memStore.
    *
    * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} req (optional) The original request object possibly containing the origin
+   * @returns {promise} after signature has been
+   *
+   */
+  addUnapprovedMessageAsync (msgParams, req) {
+    return new Promise((resolve, reject) => {
+      const msgId = this.addUnapprovedMessage(msgParams, req)
+      // await finished
+      this.once(`${msgId}:finished`, (data) => {
+        switch (data.status) {
+          case 'signed':
+            return resolve(data.rawSig)
+          case 'rejected':
+            return reject(new Error('MetaMask Message Signature: User denied message signature.'))
+          default:
+            return reject(new Error(`MetaMask Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`))
+        }
+      })
+    })
+  }
+
+  /**
+   * Creates a new Message with an 'unapproved' status using the passed msgParams. this.addMsg is called to add the
+   * new Message to this.messages, and to save the unapproved Messages from that list to this.memStore.
+   *
+   * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} req (optional) The original request object where the origin may be specificied
    * @returns {number} The id of the newly created message.
    *
    */
-  addUnapprovedMessage (msgParams) {
+  addUnapprovedMessage (msgParams, req) {
+    // add origin from request
+    if (req) msgParams.origin = req.origin
     msgParams.data = normalizeMsgData(msgParams.data)
     // create txData obj with parameters and meta data
     var time = (new Date()).getTime()
diff --git a/app/scripts/lib/personal-message-manager.js b/app/scripts/lib/personal-message-manager.js
index e96ced1f2..fc2cccdf1 100644
--- a/app/scripts/lib/personal-message-manager.js
+++ b/app/scripts/lib/personal-message-manager.js
@@ -73,11 +73,43 @@ module.exports = class PersonalMessageManager extends EventEmitter {
    * this.memStore.
    *
    * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} req (optional) The original request object possibly containing the origin
+   * @returns {promise} When the message has been signed or rejected
+   *
+   */
+  addUnapprovedMessageAsync (msgParams, req) {
+    return new Promise((resolve, reject) => {
+      if (!msgParams.from) {
+        reject(new Error('MetaMask Message Signature: from field is required.'))
+      }
+      const msgId = this.addUnapprovedMessage(msgParams, req)
+      this.once(`${msgId}:finished`, (data) => {
+        switch (data.status) {
+          case 'signed':
+            return resolve(data.rawSig)
+          case 'rejected':
+            return reject(new Error('MetaMask Message Signature: User denied message signature.'))
+          default:
+            return reject(new Error(`MetaMask Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`))
+        }
+      })
+    })
+  }
+
+  /**
+   * Creates a new PersonalMessage with an 'unapproved' status using the passed msgParams. this.addMsg is called to add
+   * the new PersonalMessage to this.messages, and to save the unapproved PersonalMessages from that list to
+   * this.memStore.
+   *
+   * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} req (optional) The original request object possibly containing the origin
    * @returns {number} The id of the newly created PersonalMessage.
    *
    */
-  addUnapprovedMessage (msgParams) {
+  addUnapprovedMessage (msgParams, req) {
     log.debug(`PersonalMessageManager addUnapprovedMessage: ${JSON.stringify(msgParams)}`)
+    // add origin from request
+    if (req) msgParams.origin = req.origin
     msgParams.data = this.normalizeMsgData(msgParams.data)
     // create txData obj with parameters and meta data
     var time = (new Date()).getTime()
@@ -257,4 +289,3 @@ module.exports = class PersonalMessageManager extends EventEmitter {
   }
 
 }
-
diff --git a/app/scripts/lib/port-stream.js b/app/scripts/lib/port-stream.js
index fd65d94f3..cdf7a7315 100644
--- a/app/scripts/lib/port-stream.js
+++ b/app/scripts/lib/port-stream.js
@@ -46,7 +46,7 @@ PortDuplexStream.prototype._onMessage = function (msg) {
  * @private
  */
 PortDuplexStream.prototype._onDisconnect = function () {
-  this.destroy()
+  this.destroy && this.destroy()
 }
 
 /**
diff --git a/app/scripts/lib/setupRaven.js b/app/scripts/lib/setupRaven.js
index 3651524f1..e6e511640 100644
--- a/app/scripts/lib/setupRaven.js
+++ b/app/scripts/lib/setupRaven.js
@@ -70,11 +70,11 @@ function simplifyErrorMessages (report) {
 
 function rewriteErrorMessages (report, rewriteFn) {
   // rewrite top level message
-  if (report.message) report.message = rewriteFn(report.message)
+  if (typeof report.message === 'string') report.message = rewriteFn(report.message)
   // rewrite each exception message
   if (report.exception && report.exception.values) {
     report.exception.values.forEach(item => {
-      item.value = rewriteFn(item.value)
+      if (typeof item.value === 'string') item.value = rewriteFn(item.value)
     })
   }
 }
diff --git a/app/scripts/lib/typed-message-manager.js b/app/scripts/lib/typed-message-manager.js
index c58921610..e5e1c94b3 100644
--- a/app/scripts/lib/typed-message-manager.js
+++ b/app/scripts/lib/typed-message-manager.js
@@ -72,11 +72,40 @@ module.exports = class TypedMessageManager extends EventEmitter {
    * this.memStore. Before any of this is done, msgParams are validated
    *
    * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} req (optional) The original request object possibly containing the origin
+   * @returns {promise} When the message has been signed or rejected
+   *
+   */
+  addUnapprovedMessageAsync (msgParams, req) {
+    return new Promise((resolve, reject) => {
+      const msgId = this.addUnapprovedMessage(msgParams, req)
+      this.once(`${msgId}:finished`, (data) => {
+        switch (data.status) {
+          case 'signed':
+            return resolve(data.rawSig)
+          case 'rejected':
+            return reject(new Error('MetaMask Message Signature: User denied message signature.'))
+          default:
+            return reject(new Error(`MetaMask Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`))
+        }
+      })
+    })
+  }
+
+  /**
+   * Creates a new TypedMessage with an 'unapproved' status using the passed msgParams. this.addMsg is called to add
+   * the new TypedMessage to this.messages, and to save the unapproved TypedMessages from that list to
+   * this.memStore. Before any of this is done, msgParams are validated
+   *
+   * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} req (optional) The original request object possibly containing the origin
    * @returns {number} The id of the newly created TypedMessage.
    *
    */
-  addUnapprovedMessage (msgParams) {
+  addUnapprovedMessage (msgParams, req) {
     this.validateParams(msgParams)
+    // add origin from request
+    if (req) msgParams.origin = req.origin
 
     log.debug(`TypedMessageManager addUnapprovedMessage: ${JSON.stringify(msgParams)}`)
     // create txData obj with parameters and meta data
diff --git a/app/scripts/lib/util.js b/app/scripts/lib/util.js
index 51e9036cc..ea13b26be 100644
--- a/app/scripts/lib/util.js
+++ b/app/scripts/lib/util.js
@@ -5,6 +5,11 @@ const {
   ENVIRONMENT_TYPE_POPUP,
   ENVIRONMENT_TYPE_NOTIFICATION,
   ENVIRONMENT_TYPE_FULLSCREEN,
+  PLATFORM_FIREFOX,
+  PLATFORM_OPERA,
+  PLATFORM_CHROME,
+  PLATFORM_EDGE,
+  PLATFORM_BRAVE,
 } = require('./enums')
 
 /**
@@ -38,6 +43,29 @@ const getEnvironmentType = (url = window.location.href) => {
 }
 
 /**
+ * Returns the platform (browser) where the extension is running.
+ *
+ * @returns {string} the platform ENUM
+ *
+ */
+const getPlatform = _ => {
+  const ua = navigator.userAgent
+  if (ua.search('Firefox') !== -1) {
+    return PLATFORM_FIREFOX
+  } else {
+    if (window && window.chrome && window.chrome.ipcRenderer) {
+      return PLATFORM_BRAVE
+    } else if (ua.search('Edge') !== -1) {
+      return PLATFORM_EDGE
+    } else if (ua.search('OPR') !== -1) {
+      return PLATFORM_OPERA
+    } else {
+      return PLATFORM_CHROME
+    }
+  }
+}
+
+/**
  * Checks whether a given balance of ETH, represented as a hex string, is sufficient to pay a value plus a gas fee
  *
  * @param {object} txParams Contains data about a transaction
@@ -99,7 +127,22 @@ function BnMultiplyByFraction (targetBN, numerator, denominator) {
   return targetBN.mul(numBN).div(denomBN)
 }
 
+function applyListeners (listeners, emitter) {
+  Object.keys(listeners).forEach((key) => {
+    emitter.on(key, listeners[key])
+  })
+}
+
+function removeListeners (listeners, emitter) {
+  Object.keys(listeners).forEach((key) => {
+    emitter.removeListener(key, listeners[key])
+  })
+}
+
 module.exports = {
+  removeListeners,
+  applyListeners,
+  getPlatform,
   getStack,
   getEnvironmentType,
   sufficientBalance,
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index db323e3fe..2d7d2c671 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -46,9 +46,10 @@ const BN = require('ethereumjs-util').BN
 const GWEI_BN = new BN('1000000000')
 const percentile = require('percentile')
 const seedPhraseVerifier = require('./lib/seed-phrase-verifier')
-const cleanErrorStack = require('./lib/cleanErrorStack')
 const log = require('loglevel')
 const TrezorKeyring = require('eth-trezor-keyring')
+const LedgerBridgeKeyring = require('eth-ledger-bridge-keyring')
+const EthQuery = require('eth-query')
 
 module.exports = class MetamaskController extends EventEmitter {
 
@@ -107,8 +108,9 @@ module.exports = class MetamaskController extends EventEmitter {
     this.blacklistController.scheduleUpdates()
 
     // rpc provider
-    this.provider = this.initializeProvider()
-    this.blockTracker = this.provider._blockTracker
+    this.initializeProvider()
+    this.provider = this.networkController.getProviderAndBlockTracker().provider
+    this.blockTracker = this.networkController.getProviderAndBlockTracker().blockTracker
 
     // token exchange rate tracker
     this.tokenRatesController = new TokenRatesController({
@@ -127,7 +129,7 @@ module.exports = class MetamaskController extends EventEmitter {
     })
 
     // key mgmt
-    const additionalKeyrings = [TrezorKeyring]
+    const additionalKeyrings = [TrezorKeyring, LedgerBridgeKeyring]
     this.keyringController = new KeyringController({
       keyringTypes: additionalKeyrings,
       initState: initState.KeyringController,
@@ -252,28 +254,22 @@ module.exports = class MetamaskController extends EventEmitter {
       static: {
         eth_syncing: false,
         web3_clientVersion: `MetaMask/v${version}`,
-        eth_sendTransaction: (payload, next, end) => {
-          const origin = payload.origin
-          const txParams = payload.params[0]
-          nodeify(this.txController.newUnapprovedTransaction, this.txController)(txParams, { origin }, end)
-        },
       },
       // account mgmt
-      getAccounts: (cb) => {
+      getAccounts: async () => {
         const isUnlocked = this.keyringController.memStore.getState().isUnlocked
-        const result = []
         const selectedAddress = this.preferencesController.getSelectedAddress()
-
         // only show address if account is unlocked
         if (isUnlocked && selectedAddress) {
-          result.push(selectedAddress)
+          return [selectedAddress]
+        } else {
+          return []
         }
-        cb(null, result)
       },
       // tx signing
-      // old style msg signing
-      processMessage: this.newUnsignedMessage.bind(this),
-      // personal_sign msg signing
+      processTransaction: this.newUnapprovedTransaction.bind(this),
+      // msg signing
+      processEthSignMessage: this.newUnsignedMessage.bind(this),
       processPersonalMessage: this.newUnsignedPersonalMessage.bind(this),
       processTypedMessage: this.newUnsignedTypedMessage.bind(this),
     }
@@ -377,9 +373,7 @@ module.exports = class MetamaskController extends EventEmitter {
       connectHardware: nodeify(this.connectHardware, this),
       forgetDevice: nodeify(this.forgetDevice, this),
       checkHardwareStatus: nodeify(this.checkHardwareStatus, this),
-
-      // TREZOR
-      unlockTrezorAccount: nodeify(this.unlockTrezorAccount, this),
+      unlockHardwareWalletAccount: nodeify(this.unlockHardwareWalletAccount, this),
 
       // vault management
       submitPassword: nodeify(this.submitPassword, this),
@@ -481,12 +475,32 @@ module.exports = class MetamaskController extends EventEmitter {
   async createNewVaultAndRestore (password, seed) {
     const releaseLock = await this.createVaultMutex.acquire()
     try {
+      let accounts, lastBalance
+
+      const keyringController = this.keyringController
+
       // clear known identities
       this.preferencesController.setAddresses([])
       // create new vault
-      const vault = await this.keyringController.createNewVaultAndRestore(password, seed)
+      const vault = await keyringController.createNewVaultAndRestore(password, seed)
+
+      const ethQuery = new EthQuery(this.provider)
+      accounts = await keyringController.getAccounts()
+      lastBalance = await this.getBalance(accounts[accounts.length - 1], ethQuery)
+
+      const primaryKeyring = keyringController.getKeyringsByType('HD Key Tree')[0]
+      if (!primaryKeyring) {
+        throw new Error('MetamaskController - No HD Key Tree found')
+      }
+
+      // seek out the first zero balance
+      while (lastBalance !== '0x0') {
+        await keyringController.addNewAccount(primaryKeyring)
+        accounts = await keyringController.getAccounts()
+        lastBalance = await this.getBalance(accounts[accounts.length - 1], ethQuery)
+      }
+
       // set new identities
-      const accounts = await this.keyringController.getAccounts()
       this.preferencesController.setAddresses(accounts)
       this.selectFirstIdentity()
       releaseLock()
@@ -497,6 +511,30 @@ module.exports = class MetamaskController extends EventEmitter {
     }
   }
 
+  /**
+   * Get an account balance from the AccountTracker or request it directly from the network.
+   * @param {string} address - The account address
+   * @param {EthQuery} ethQuery - The EthQuery instance to use when asking the network
+   */
+  getBalance (address, ethQuery) {
+    return new Promise((resolve, reject) => {
+      const cached = this.accountTracker.store.getState().accounts[address]
+
+      if (cached && cached.balance) {
+        resolve(cached.balance)
+      } else {
+        ethQuery.getBalance(address, (error, balance) => {
+          if (error) {
+            reject(error)
+            log.error(error)
+          } else {
+            resolve(balance || '0x0')
+          }
+        })
+      }
+    })
+  }
+
   /*
    * Submits the user's password and attempts to unlock the vault.
    * Also synchronizes the preferencesController, to ensure its schema
@@ -540,45 +578,57 @@ module.exports = class MetamaskController extends EventEmitter {
   // Hardware
   //
 
+  async getKeyringForDevice (deviceName, hdPath = null) {
+    let keyringName = null
+    switch (deviceName) {
+      case 'trezor':
+        keyringName = TrezorKeyring.type
+        break
+      case 'ledger':
+        keyringName = LedgerBridgeKeyring.type
+        break
+      default:
+        throw new Error('MetamaskController:getKeyringForDevice - Unknown device')
+    }
+    let keyring = await this.keyringController.getKeyringsByType(keyringName)[0]
+    if (!keyring) {
+      keyring = await this.keyringController.addNewKeyring(keyringName)
+    }
+    if (hdPath && keyring.setHdPath) {
+      keyring.setHdPath(hdPath)
+    }
+
+    keyring.network = this.networkController.getProviderConfig().type
+
+    return keyring
+
+  }
+
   /**
    * Fetch account list from a trezor device.
    *
    * @returns [] accounts
    */
-  async connectHardware (deviceName, page) {
-
-    switch (deviceName) {
-      case 'trezor':
-        const keyringController = this.keyringController
-        const oldAccounts = await keyringController.getAccounts()
-        let keyring = await keyringController.getKeyringsByType(
-          'Trezor Hardware'
-        )[0]
-        if (!keyring) {
-          keyring = await this.keyringController.addNewKeyring('Trezor Hardware')
-        }
-        let accounts = []
-
-        switch (page) {
-            case -1:
-              accounts = await keyring.getPreviousPage()
-              break
-            case 1:
-              accounts = await keyring.getNextPage()
-              break
-            default:
-              accounts = await keyring.getFirstPage()
-        }
-
-        // Merge with existing accounts
-        // and make sure addresses are not repeated
-        const accountsToTrack = [...new Set(oldAccounts.concat(accounts.map(a => a.address.toLowerCase())))]
-        this.accountTracker.syncWithAddresses(accountsToTrack)
-        return accounts
-
-      default:
-        throw new Error('MetamaskController:connectHardware - Unknown device')
+  async connectHardware (deviceName, page, hdPath) {
+    const keyring = await this.getKeyringForDevice(deviceName, hdPath)
+    let accounts = []
+    switch (page) {
+        case -1:
+          accounts = await keyring.getPreviousPage()
+          break
+        case 1:
+          accounts = await keyring.getNextPage()
+          break
+        default:
+          accounts = await keyring.getFirstPage()
     }
+
+    // Merge with existing accounts
+    // and make sure addresses are not repeated
+    const oldAccounts = await this.keyringController.getAccounts()
+    const accountsToTrack = [...new Set(oldAccounts.concat(accounts.map(a => a.address.toLowerCase())))]
+    this.accountTracker.syncWithAddresses(accountsToTrack)
+    return accounts
   }
 
   /**
@@ -586,21 +636,9 @@ module.exports = class MetamaskController extends EventEmitter {
    *
    * @returns {Promise<boolean>}
    */
-  async checkHardwareStatus (deviceName) {
-
-    switch (deviceName) {
-      case 'trezor':
-        const keyringController = this.keyringController
-        const keyring = await keyringController.getKeyringsByType(
-          'Trezor Hardware'
-        )[0]
-        if (!keyring) {
-          return false
-        }
-        return keyring.isUnlocked()
-      default:
-        throw new Error('MetamaskController:checkHardwareStatus - Unknown device')
-    }
+  async checkHardwareStatus (deviceName, hdPath) {
+    const keyring = await this.getKeyringForDevice(deviceName, hdPath)
+    return keyring.isUnlocked()
   }
 
   /**
@@ -610,20 +648,9 @@ module.exports = class MetamaskController extends EventEmitter {
    */
   async forgetDevice (deviceName) {
 
-    switch (deviceName) {
-      case 'trezor':
-        const keyringController = this.keyringController
-        const keyring = await keyringController.getKeyringsByType(
-          'Trezor Hardware'
-        )[0]
-        if (!keyring) {
-          throw new Error('MetamaskController:forgetDevice - Trezor Hardware keyring not found')
-        }
-        keyring.forgetDevice()
-        return true
-      default:
-        throw new Error('MetamaskController:forgetDevice - Unknown device')
-    }
+    const keyring = await this.getKeyringForDevice(deviceName)
+    keyring.forgetDevice()
+    return true
   }
 
   /**
@@ -631,23 +658,17 @@ module.exports = class MetamaskController extends EventEmitter {
    *
    * @returns {} keyState
    */
-  async unlockTrezorAccount (index) {
-    const keyringController = this.keyringController
-    const keyring = await keyringController.getKeyringsByType(
-      'Trezor Hardware'
-    )[0]
-    if (!keyring) {
-      throw new Error('MetamaskController - No Trezor Hardware Keyring found')
-    }
+  async unlockHardwareWalletAccount (index, deviceName, hdPath) {
+    const keyring = await this.getKeyringForDevice(deviceName, hdPath)
 
     keyring.setAccountToUnlock(index)
-    const oldAccounts = await keyringController.getAccounts()
-    const keyState = await keyringController.addNewAccount(keyring)
-    const newAccounts = await keyringController.getAccounts()
+    const oldAccounts = await this.keyringController.getAccounts()
+    const keyState = await this.keyringController.addNewAccount(keyring)
+    const newAccounts = await this.keyringController.getAccounts()
     this.preferencesController.setAddresses(newAccounts)
     newAccounts.forEach(address => {
       if (!oldAccounts.includes(address)) {
-        this.preferencesController.setAccountLabel(address, `TREZOR #${parseInt(index, 10) + 1}`)
+        this.preferencesController.setAccountLabel(address, `${deviceName.toUpperCase()} ${parseInt(index, 10) + 1}`)
         this.preferencesController.setSelectedAddress(address)
       }
     })
@@ -809,6 +830,18 @@ module.exports = class MetamaskController extends EventEmitter {
   // ---------------------------------------------------------------------------
   // Identity Management (signature operations)
 
+  /**
+   * Called when a Dapp suggests a new tx to be signed.
+   * this wrapper needs to exist so we can provide a reference to
+   *  "newUnapprovedTransaction" before "txController" is instantiated
+   *
+   * @param {Object} msgParams - The params passed to eth_sign.
+   * @param {Object} req - (optional) the original request, containing the origin
+   */
+  async newUnapprovedTransaction (txParams, req) {
+    return await this.txController.newUnapprovedTransaction(txParams, req)
+  }
+
   // eth_sign methods:
 
   /**
@@ -820,20 +853,11 @@ module.exports = class MetamaskController extends EventEmitter {
    * @param {Object} msgParams - The params passed to eth_sign.
    * @param {Function} cb = The callback function called with the signature.
    */
-  newUnsignedMessage (msgParams, cb) {
-    const msgId = this.messageManager.addUnapprovedMessage(msgParams)
+  newUnsignedMessage (msgParams, req) {
+    const promise = this.messageManager.addUnapprovedMessageAsync(msgParams, req)
     this.sendUpdate()
     this.opts.showUnconfirmedMessage()
-    this.messageManager.once(`${msgId}:finished`, (data) => {
-      switch (data.status) {
-        case 'signed':
-          return cb(null, data.rawSig)
-        case 'rejected':
-          return cb(cleanErrorStack(new Error('MetaMask Message Signature: User denied message signature.')))
-        default:
-          return cb(cleanErrorStack(new Error(`MetaMask Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`)))
-      }
-    })
+    return promise
   }
 
   /**
@@ -887,24 +911,11 @@ module.exports = class MetamaskController extends EventEmitter {
    * @param {Function} cb - The callback function called with the signature.
    * Passed back to the requesting Dapp.
    */
-  newUnsignedPersonalMessage (msgParams, cb) {
-    if (!msgParams.from) {
-      return cb(cleanErrorStack(new Error('MetaMask Message Signature: from field is required.')))
-    }
-
-    const msgId = this.personalMessageManager.addUnapprovedMessage(msgParams)
+  async newUnsignedPersonalMessage (msgParams, req) {
+    const promise = this.personalMessageManager.addUnapprovedMessageAsync(msgParams, req)
     this.sendUpdate()
     this.opts.showUnconfirmedMessage()
-    this.personalMessageManager.once(`${msgId}:finished`, (data) => {
-      switch (data.status) {
-        case 'signed':
-          return cb(null, data.rawSig)
-        case 'rejected':
-          return cb(cleanErrorStack(new Error('MetaMask Message Signature: User denied message signature.')))
-        default:
-          return cb(cleanErrorStack(new Error(`MetaMask Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`)))
-      }
-    })
+    return promise
   }
 
   /**
@@ -953,26 +964,11 @@ module.exports = class MetamaskController extends EventEmitter {
    * @param {Object} msgParams - The params passed to eth_signTypedData.
    * @param {Function} cb - The callback function, called with the signature.
    */
-  newUnsignedTypedMessage (msgParams, cb) {
-    let msgId
-    try {
-      msgId = this.typedMessageManager.addUnapprovedMessage(msgParams)
-      this.sendUpdate()
-      this.opts.showUnconfirmedMessage()
-    } catch (e) {
-      return cb(e)
-    }
-
-    this.typedMessageManager.once(`${msgId}:finished`, (data) => {
-      switch (data.status) {
-        case 'signed':
-          return cb(null, data.rawSig)
-        case 'rejected':
-          return cb(cleanErrorStack(new Error('MetaMask Message Signature: User denied message signature.')))
-        default:
-          return cb(cleanErrorStack(new Error(`MetaMask Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`)))
-      }
-    })
+  newUnsignedTypedMessage (msgParams, req) {
+    const promise = this.typedMessageManager.addUnapprovedMessageAsync(msgParams, req)
+    this.sendUpdate()
+    this.opts.showUnconfirmedMessage()
+    return promise
   }
 
   /**
@@ -1237,7 +1233,7 @@ module.exports = class MetamaskController extends EventEmitter {
     // create filter polyfill middleware
     const filterMiddleware = createFilterMiddleware({
       provider: this.provider,
-      blockTracker: this.provider._blockTracker,
+      blockTracker: this.blockTracker,
     })
 
     engine.push(createOriginMiddleware({ origin }))
diff --git a/app/scripts/platforms/extension.js b/app/scripts/platforms/extension.js
index 0803164e8..71b162dd0 100644
--- a/app/scripts/platforms/extension.js
+++ b/app/scripts/platforms/extension.js
@@ -24,8 +24,13 @@ class ExtensionPlatform {
     return extension.runtime.getManifest().version
   }
 
-  openExtensionInBrowser (route = null) {
+  openExtensionInBrowser (route = null, queryString = null) {
     let extensionURL = extension.runtime.getURL('home.html')
+
+    if (queryString) {
+      extensionURL += `?${queryString}`
+    }
+
     if (route) {
       extensionURL += `#${route}`
     }
diff --git a/docs/developing-on-deps.md b/docs/developing-on-deps.md
index 7de3f67a8..e2e07cb4e 100644
--- a/docs/developing-on-deps.md
+++ b/docs/developing-on-deps.md
@@ -1,10 +1,9 @@
 ### Developing on Dependencies
 
-To enjoy the live-reloading that `gulp dev` offers while working on the `web3-provider-engine` or other dependencies:
+To enjoy the live-reloading that `gulp dev` offers while working on the dependencies:
 
  1. Clone the dependency locally.
  2. `npm install` in its folder.
  3. Run `npm link` in its folder.
  4. Run `npm link $DEP_NAME` in this project folder.
  5. Next time you `npm start` it will watch the dependency for changes as well!
-
diff --git a/docs/porting_to_new_environment.md b/docs/porting_to_new_environment.md
index 3b1e46052..983c81f3e 100644
--- a/docs/porting_to_new_environment.md
+++ b/docs/porting_to_new_environment.md
@@ -89,8 +89,6 @@ MetaMask has two kinds of [duplex stream APIs](https://github.com/substack/strea
 
 If you are making a MetaMask-powered browser for a new platform, one of the trickiest tasks will be injecting the Web3 API into websites that are visited. On WebExtensions, we actually have to pipe data through a total of three JS contexts just to let sites talk to our background process (site -> contentscript -> background).
 
-To make this as easy as possible, we use one of our favorite internal tools, [web3-provider-engine](https://www.npmjs.com/package/web3-provider-engine) to construct a custom web3 provider object whose source of truth is a stream that we connect to remotely.
-
 To see how we do that, you can refer to the [inpage script](https://github.com/MetaMask/metamask-extension/blob/master/app/scripts/inpage.js) that we inject into every website. There you can see it creates a multiplex stream to the background, and uses it to initialize what we call the [inpage-provider](https://github.com/MetaMask/metamask-extension/blob/master/app/scripts/lib/inpage-provider.js), which you can see stubs a few methods out, but mostly just passes calls to `sendAsync` through the stream it's passed! That's really all the magic that's needed to create a web3-like API in a remote context, once you have a stream to MetaMask available.
 
 In `inpage.js` you can see we create a `PortStream`, that's just a class we use to wrap WebExtension ports as streams, so we can reuse our favorite stream abstraction over the more irregular API surface of the WebExtension. In a new platform, you will probably need to construct this stream differently. The key is that you need to construct a stream that talks from the site context to the background. Once you have that set up, it works like magic!
diff --git a/mascara/src/app/first-time/index.css b/mascara/src/app/first-time/index.css
index 09e7d378d..2d05a48b8 100644
--- a/mascara/src/app/first-time/index.css
+++ b/mascara/src/app/first-time/index.css
@@ -340,6 +340,19 @@
   min-width: 0;
 }
 
+.backup-phrase__tips-text--link {
+  color: #2f9ae0;
+  cursor: pointer;
+}
+
+.backup-phrase__tips-text--link:hover {
+  color: #2f9ae0;
+}
+
+.backup-phrase__tips-text--strong {
+  font-weight: bold;
+}
+
 @media only screen and (max-width: 768px) {
   .backup-phrase__content-wrapper {
     flex-direction: column;
diff --git a/mascara/src/app/first-time/seed-screen.js b/mascara/src/app/first-time/seed-screen.js
index d004be77b..97d5d7930 100644
--- a/mascara/src/app/first-time/seed-screen.js
+++ b/mascara/src/app/first-time/seed-screen.js
@@ -5,6 +5,7 @@ import classnames from 'classnames'
 import { withRouter } from 'react-router-dom'
 import { compose } from 'recompose'
 import Identicon from '../../../../ui/app/components/identicon'
+import {exportAsFile} from '../../../../ui/app/util'
 import Breadcrumbs from './breadcrumbs'
 import LoadingScreen from './loading-screen'
 import { DEFAULT_ROUTE, INITIALIZE_CONFIRM_SEED_ROUTE } from '../../../../ui/app/routes'
@@ -65,6 +66,12 @@ class BackupPhraseScreen extends Component {
     }
   }
 
+  exportSeedWords = () => {
+    const { seedWords } = this.props
+
+    exportAsFile('MetaMask Secret Backup Phrase', seedWords, 'text/plain')
+  }
+
   renderSecretWordsContainer () {
     const { isShowingSecret } = this.state
 
@@ -111,7 +118,7 @@ class BackupPhraseScreen extends Component {
         <div className="backup-phrase__tips">
           <div className="backup-phrase__tips-text">Tips:</div>
           <div className="backup-phrase__tips-text">
-            Store this phrase in a password manager like 1password.
+            Store this phrase in a password manager like 1Password.
           </div>
           <div className="backup-phrase__tips-text">
             Write this phrase on a piece of paper and store in a secure location. If you want even more security, write it down on multiple pieces of paper and store each in 2 - 3 different locations.
@@ -119,6 +126,13 @@ class BackupPhraseScreen extends Component {
           <div className="backup-phrase__tips-text">
             Memorize this phrase.
           </div>
+          <div className="backup-phrase__tips-text">
+            <strong>
+              <a className="backup-phrase__tips-text--link backup-phrase__tips-text--strong" onClick={this.exportSeedWords}>
+                Download this Secret Backup Phrase
+              </a>
+            </strong> and keep it stored safely on an external encrypted hard drive or storage medium.
+          </div>
         </div>
         <div className="backup-phrase__next-button">
           <button
diff --git a/old-ui/app/components/notice.js b/old-ui/app/components/notice.js
index 09d461c7b..1ec254555 100644
--- a/old-ui/app/components/notice.js
+++ b/old-ui/app/components/notice.js
@@ -116,12 +116,25 @@ Notice.prototype.render = function () {
   )
 }
 
+Notice.prototype.setInitialDisclaimerState = function () {
+  if (document.getElementsByClassName('notice-box')[0].clientHeight < 310) {
+    this.setState({disclaimerDisabled: false})
+  }
+}
+
 Notice.prototype.componentDidMount = function () {
   // eslint-disable-next-line react/no-find-dom-node
   var node = findDOMNode(this)
   linker.setupListener(node)
-  if (document.getElementsByClassName('notice-box')[0].clientHeight < 310) {
-    this.setState({disclaimerDisabled: false})
+  this.setInitialDisclaimerState()
+}
+
+Notice.prototype.componentDidUpdate = function (prevProps) {
+  const { notice: { id } = {} } = this.props
+  const { notice: { id: prevNoticeId } = {} } = prevProps
+
+  if (id !== prevNoticeId) {
+    this.setInitialDisclaimerState()
   }
 }
 
diff --git a/old-ui/app/components/transaction-list-item.js b/old-ui/app/components/transaction-list-item.js
index 015ef6ba6..6ecf7d193 100644
--- a/old-ui/app/components/transaction-list-item.js
+++ b/old-ui/app/components/transaction-list-item.js
@@ -40,7 +40,7 @@ TransactionListItem.prototype.showRetryButton = function () {
   const currentNonce = txParams.nonce
   const currentNonceTxs = transactions.filter(tx => tx.txParams.nonce === currentNonce)
   const currentNonceSubmittedTxs = currentNonceTxs.filter(tx => tx.status === 'submitted')
-  const currentSubmittedTxs = transactions.filter(tx => tx.status === 'submitted')  
+  const currentSubmittedTxs = transactions.filter(tx => tx.status === 'submitted')
   const lastSubmittedTxWithCurrentNonce = currentNonceSubmittedTxs[0]
   const currentTxIsLatestWithNonce = lastSubmittedTxWithCurrentNonce &&
     lastSubmittedTxWithCurrentNonce.id === transaction.id
diff --git a/old-ui/app/info.js b/old-ui/app/info.js
index d79b8a3d2..936d270da 100644
--- a/old-ui/app/info.js
+++ b/old-ui/app/info.js
@@ -138,7 +138,6 @@ InfoScreen.prototype.render = function () {
               h('div.fa.fa-envelope', [
                 h('a.info', {
                   target: '_blank',
-                  style: { width: '85vw' },
                   href: 'mailto:help@metamask.io?subject=Feedback',
                 }, 'Email us!'),
               ]),
diff --git a/package-lock.json b/package-lock.json
index 405372df4..a8a096c36 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -385,39 +385,6 @@
         }
       }
     },
-    "@mrmlnc/readdir-enhanced": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz",
-      "integrity": "sha512-bPHp6Ji8b41szTOcaP63VlnbbO5Ny6dwAATtY6JTjh5N2OLrb5Qk/Th5cRkRQhkWCt+EJsYrNB0MiL+Gpn6e3g==",
-      "dev": true,
-      "requires": {
-        "call-me-maybe": "^1.0.1",
-        "glob-to-regexp": "^0.3.0"
-      }
-    },
-    "@nodelib/fs.stat": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-1.1.0.tgz",
-      "integrity": "sha512-LAQ1d4OPfSJ/BMbI2DuizmYrrkD9JMaTdi2hQTlI53lQ4kRQPyZQRS4CYQ7O66bnBBnP/oYdRxbk++X0xuFU6A==",
-      "dev": true
-    },
-    "@samverschueren/stream-to-observable": {
-      "version": "0.3.0",
-      "resolved": "https://registry.npmjs.org/@samverschueren/stream-to-observable/-/stream-to-observable-0.3.0.tgz",
-      "integrity": "sha512-MI4Xx6LHs4Webyvi6EbspgyAb4D2Q2VtnCQ1blOJcoLS6mVa8lNN2rkIy1CVxfTUpoyIbCTkXES1rLXztFD1lg==",
-      "dev": true,
-      "requires": {
-        "any-observable": "^0.3.0"
-      },
-      "dependencies": {
-        "any-observable": {
-          "version": "0.3.0",
-          "resolved": "https://registry.npmjs.org/any-observable/-/any-observable-0.3.0.tgz",
-          "integrity": "sha512-/FQM1EDkTsf63Ub2C6O7GuYFDsSXUwsaZDurV0np41ocwq0jthUAYCmhBX9f+KwlaCgIuWyr/4WlUQUBfKfZog==",
-          "dev": true
-        }
-      }
-    },
     "@sentry/cli": {
       "version": "1.30.3",
       "resolved": "https://registry.npmjs.org/@sentry/cli/-/cli-1.30.3.tgz",
@@ -460,12 +427,6 @@
         }
       }
     },
-    "@sindresorhus/is": {
-      "version": "0.7.0",
-      "resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-0.7.0.tgz",
-      "integrity": "sha512-ONhaKPIufzzrlNbqtWFFd+jlnemX6lJAgq9ZeiZtS7I1PIf/la7CW4m83rTXRnVnsMbW2k56pGYu7AUFJD9Pow==",
-      "dev": true
-    },
     "@sinonjs/formatio": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-2.0.0.tgz",
@@ -1623,6 +1584,15 @@
         "@types/react": "*"
       }
     },
+    "@zxing/library": {
+      "version": "0.8.0",
+      "resolved": "https://registry.npmjs.org/@zxing/library/-/library-0.8.0.tgz",
+      "integrity": "sha512-D7oopukr7cJ0Va01Er2zXiSPXvmvc6D1PpOq/THRvd/57yEsBs+setRsiDo7tSRnYHcw7FrRZSZ7rwyzNSLJeA==",
+      "requires": {
+        "text-encoding": "^0.6.4",
+        "ts-custom-error": "^2.2.1"
+      }
+    },
     "JSONStream": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.2.tgz",
@@ -2107,12 +2077,6 @@
         "sprintf-js": "~1.0.2"
       }
     },
-    "argsarray": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/argsarray/-/argsarray-0.0.1.tgz",
-      "integrity": "sha1-bnIHtOzbObCviDA/pa4ivajfYcs=",
-      "dev": true
-    },
     "arr-diff": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
@@ -2412,7 +2376,8 @@
     "async-limiter": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
-      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
+      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==",
+      "dev": true
     },
     "async-reduce": {
       "version": "0.0.1",
@@ -3891,14 +3856,6 @@
       "integrity": "sha1-MasayLEpNjRj41s+u2n038+6eUc=",
       "dev": true
     },
-    "backoff": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npmjs.org/backoff/-/backoff-2.5.0.tgz",
-      "integrity": "sha1-9hbtqdPktmuMp/ynn2lXIsX44m8=",
-      "requires": {
-        "precond": "0.2"
-      }
-    },
     "bail": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/bail/-/bail-1.0.2.tgz",
@@ -4657,22 +4614,6 @@
         "ieee754": "^1.1.4"
       }
     },
-    "buffer-alloc": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/buffer-alloc/-/buffer-alloc-1.2.0.tgz",
-      "integrity": "sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==",
-      "dev": true,
-      "requires": {
-        "buffer-alloc-unsafe": "^1.1.0",
-        "buffer-fill": "^1.0.0"
-      }
-    },
-    "buffer-alloc-unsafe": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz",
-      "integrity": "sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==",
-      "dev": true
-    },
     "buffer-crc32": {
       "version": "0.2.13",
       "resolved": "https://registry.npmjs.org/buffer-crc32/-/buffer-crc32-0.2.13.tgz",
@@ -4684,30 +4625,12 @@
       "resolved": "https://registry.npmjs.org/buffer-equal/-/buffer-equal-1.0.0.tgz",
       "integrity": "sha1-WWFrSYME1Var1GaWayLu2j7KX74="
     },
-    "buffer-fill": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/buffer-fill/-/buffer-fill-1.0.0.tgz",
-      "integrity": "sha1-+PeLdniYiO858gXNY39o5wISKyw=",
-      "dev": true
-    },
-    "buffer-from": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-0.1.2.tgz",
-      "integrity": "sha512-RiWIenusJsmI2KcvqQABB83tLxCByE3upSP8QU3rJDMVFGPWLvPQJt/O1Su9moRWeH7d+Q2HYb68f6+v+tw2vg==",
-      "dev": true
-    },
     "buffer-more-ints": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/buffer-more-ints/-/buffer-more-ints-0.0.2.tgz",
       "integrity": "sha1-JrOIXRD6E9t/wBquOquHAZngEkw=",
       "dev": true
     },
-    "buffer-to-arraybuffer": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/buffer-to-arraybuffer/-/buffer-to-arraybuffer-0.0.5.tgz",
-      "integrity": "sha1-YGSkD6dutDxyOrqe+PbhIW0QURo=",
-      "dev": true
-    },
     "buffer-xor": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/buffer-xor/-/buffer-xor-1.0.3.tgz",
@@ -4749,25 +4672,6 @@
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
       "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
     },
-    "bytewise": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/bytewise/-/bytewise-1.1.0.tgz",
-      "integrity": "sha1-HRPL/3F65xWAlKqIGzXQgbOHJT4=",
-      "dev": true,
-      "requires": {
-        "bytewise-core": "^1.2.2",
-        "typewise": "^1.0.3"
-      }
-    },
-    "bytewise-core": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/bytewise-core/-/bytewise-core-1.2.3.tgz",
-      "integrity": "sha1-P7QQx+kVWOsasiqCg0V3qmvWHUI=",
-      "dev": true,
-      "requires": {
-        "typewise-core": "^1.2"
-      }
-    },
     "cacache": {
       "version": "10.0.4",
       "resolved": "https://registry.npmjs.org/cacache/-/cacache-10.0.4.tgz",
@@ -4820,62 +4724,12 @@
         }
       }
     },
-    "cacheable-request": {
-      "version": "2.1.4",
-      "resolved": "https://registry.npmjs.org/cacheable-request/-/cacheable-request-2.1.4.tgz",
-      "integrity": "sha1-DYCIAbY0KtM8kd+dC0TcCbkeXD0=",
-      "dev": true,
-      "requires": {
-        "clone-response": "1.0.2",
-        "get-stream": "3.0.0",
-        "http-cache-semantics": "3.8.1",
-        "keyv": "3.0.0",
-        "lowercase-keys": "1.0.0",
-        "normalize-url": "2.0.1",
-        "responselike": "1.0.2"
-      },
-      "dependencies": {
-        "lowercase-keys": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-1.0.0.tgz",
-          "integrity": "sha1-TjNms55/VFfjXxMkvfb4jQv8cwY=",
-          "dev": true
-        }
-      }
-    },
     "cached-path-relative": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/cached-path-relative/-/cached-path-relative-1.0.1.tgz",
       "integrity": "sha1-0JxLUoAKpMB44t2BqGmqyQ0uVOc=",
       "dev": true
     },
-    "cachedown": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/cachedown/-/cachedown-1.0.0.tgz",
-      "integrity": "sha1-1D8DbkUQaWsxJG19sx6/D3rDLRU=",
-      "dev": true,
-      "requires": {
-        "abstract-leveldown": "^2.4.1",
-        "lru-cache": "^3.2.0"
-      },
-      "dependencies": {
-        "lru-cache": {
-          "version": "3.2.0",
-          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-3.2.0.tgz",
-          "integrity": "sha1-cXibO39Tmb7IVl3aOKow0qCX7+4=",
-          "dev": true,
-          "requires": {
-            "pseudomap": "^1.0.1"
-          }
-        }
-      }
-    },
-    "call-me-maybe": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/call-me-maybe/-/call-me-maybe-1.0.1.tgz",
-      "integrity": "sha1-JtII6onje1y95gJQoV8DHBak1ms=",
-      "dev": true
-    },
     "caller-path": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-0.1.0.tgz",
@@ -5267,29 +5121,6 @@
         "restore-cursor": "^2.0.0"
       }
     },
-    "cli-spinners": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/cli-spinners/-/cli-spinners-0.1.2.tgz",
-      "integrity": "sha1-u3ZNiOGF+54eaiofGXcjGPYF4xw=",
-      "dev": true
-    },
-    "cli-table": {
-      "version": "0.3.1",
-      "resolved": "https://registry.npmjs.org/cli-table/-/cli-table-0.3.1.tgz",
-      "integrity": "sha1-9TsFJmqLGguTSz0IIebi3FkUriM=",
-      "dev": true,
-      "requires": {
-        "colors": "1.0.3"
-      },
-      "dependencies": {
-        "colors": {
-          "version": "1.0.3",
-          "resolved": "https://registry.npmjs.org/colors/-/colors-1.0.3.tgz",
-          "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=",
-          "dev": true
-        }
-      }
-    },
     "cli-table2": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/cli-table2/-/cli-table2-0.2.0.tgz",
@@ -5316,24 +5147,6 @@
         }
       }
     },
-    "cli-truncate": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/cli-truncate/-/cli-truncate-0.2.1.tgz",
-      "integrity": "sha1-nxXPuwcFAFNpIWxiasfQWrkN1XQ=",
-      "dev": true,
-      "requires": {
-        "slice-ansi": "0.0.4",
-        "string-width": "^1.0.1"
-      },
-      "dependencies": {
-        "slice-ansi": {
-          "version": "0.0.4",
-          "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-0.0.4.tgz",
-          "integrity": "sha1-7b+JA/ZvfOL46v1s7tZeJkyDGzU=",
-          "dev": true
-        }
-      }
-    },
     "cli-width": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-2.2.0.tgz",
@@ -5425,15 +5238,6 @@
         "is-supported-regexp-flag": "^1.0.0"
       }
     },
-    "clone-response": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/clone-response/-/clone-response-1.0.2.tgz",
-      "integrity": "sha1-0dyXOSAxTfZ/vrlCI7TuNQI56Ws=",
-      "dev": true,
-      "requires": {
-        "mimic-response": "^1.0.0"
-      }
-    },
     "clone-stats": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/clone-stats/-/clone-stats-1.0.0.tgz",
@@ -5934,16 +5738,6 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
-    "cors": {
-      "version": "2.8.4",
-      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.4.tgz",
-      "integrity": "sha1-K9OB8usgECAQXNUOpZ2mMJBpRoY=",
-      "dev": true,
-      "requires": {
-        "object-assign": "^4",
-        "vary": "^1"
-      }
-    },
     "corser": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/corser/-/corser-2.0.1.tgz",
@@ -6040,22 +5834,6 @@
         "is-windows": "^1.0.0"
       }
     },
-    "cross-fetch": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/cross-fetch/-/cross-fetch-2.1.0.tgz",
-      "integrity": "sha512-FTIt2WK44RiafWQ62xIvd+oBoVd392abh1lF872trLlA74JCR1s4oTHlixwoIKy44ehn8WbQ0Ds2P16sw7ZQxg==",
-      "requires": {
-        "node-fetch": "2.1.1",
-        "whatwg-fetch": "2.0.3"
-      },
-      "dependencies": {
-        "node-fetch": {
-          "version": "2.1.1",
-          "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.1.1.tgz",
-          "integrity": "sha1-NpynC4L1DIZJYQSmx3bSdPTkotQ="
-        }
-      }
-    },
     "cross-spawn": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-5.1.0.tgz",
@@ -6546,18 +6324,6 @@
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       "integrity": "sha1-vEZ0gAQ3iyGjYMn8fPUjF5B2L7g="
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-    "d64": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/d64/-/d64-1.0.0.tgz",
-      "integrity": "sha1-QAKofoUMv8n52XBrYPymE6MzbpA=",
-      "dev": true
-    },
-    "dargs": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/dargs/-/dargs-5.1.0.tgz",
-      "integrity": "sha1-7H6lDHhWTNNsnV7Bj2Yyn63ieCk=",
-      "dev": true
-    },
     "dashdash": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
@@ -6573,12 +6339,6 @@
       "dev": true,
       "optional": true
     },
-    "date-fns": {
-      "version": "1.29.0",
-      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-1.29.0.tgz",
-      "integrity": "sha512-lbTXWZ6M20cWH8N9S6afb0SBm6tMk+uUg6z3MqHPKE9atmsY3kJkTm8vKe93izJ2B2+q5MV990sM2CHgtAZaOw==",
-      "dev": true
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     "date-format": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/date-format/-/date-format-1.2.0.tgz",
@@ -6650,137 +6410,6 @@
       "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.0.tgz",
       "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU="
     },
-    "decompress": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/decompress/-/decompress-4.2.0.tgz",
-      "integrity": "sha1-eu3YVCflqS2s/lVnSnxQXpbQH50=",
-      "dev": true,
-      "requires": {
-        "decompress-tar": "^4.0.0",
-        "decompress-tarbz2": "^4.0.0",
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@@ -8588,10 +8322,9 @@
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@@ -8600,11 +8333,37 @@
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@@ -8787,7 +8546,7 @@
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+      "version": "github:MetaMask/eth-trezor-keyring#7bdeb094dc3549c474c83fcebcfb38882f400ae1",
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@@ -8879,12 +8616,50 @@
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         "web3-provider-engine": "^13.3.2"
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+          "resolved": "https://registry.npmjs.org/eth-block-tracker/-/eth-block-tracker-2.3.1.tgz",
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+          "requires": {
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@@ -8933,6 +8708,11 @@
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-          "dev": true,
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-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
-          "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
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-          "dev": true,
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-            "decamelize": "^1.1.1",
-            "find-up": "^2.1.0",
-            "get-caller-file": "^1.0.1",
-            "os-locale": "^2.0.0",
-            "require-directory": "^2.1.1",
-            "require-main-filename": "^1.0.1",
-            "set-blocking": "^2.0.0",
-            "string-width": "^2.0.0",
-            "which-module": "^2.0.0",
-            "y18n": "^3.2.1",
-            "yargs-parser": "^9.0.2"
-          }
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-        "yargs-parser": {
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-          "dev": true,
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-          "integrity": "sha512-gQ+hIW8QRlUo4jGBDCm++qg01SXaIVJ7VyLrtSwk2jQG4vtvluWpsGIl7V8DqT2jGiqukdec0uEyffVEyQgaZA==",
-          "dev": true,
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-            "cross-spawn": "^6.0.5",
-            "debug": "^3.1.0",
-            "diff": "^3.3.1",
-            "escape-string-regexp": "^1.0.2",
-            "globby": "^8.0.1",
-            "grouped-queue": "^0.3.3",
-            "inquirer": "^5.2.0",
-            "is-scoped": "^1.0.0",
-            "lodash": "^4.17.10",
-            "log-symbols": "^2.1.0",
-            "mem-fs": "^1.1.0",
-            "strip-ansi": "^4.0.0",
-            "text-table": "^0.2.0",
-            "untildify": "^3.0.2"
-          }
-        },
-        "yeoman-generator": {
-          "version": "2.0.5",
-          "resolved": "https://registry.npmjs.org/yeoman-generator/-/yeoman-generator-2.0.5.tgz",
-          "integrity": "sha512-rV6tJ8oYzm4mmdF2T3wjY+Q42jKF2YiiD0VKfJ8/0ZYwmhCKC9Xs2346HVLPj/xE13i68psnFJv7iS6gWRkeAg==",
-          "dev": true,
-          "requires": {
-            "async": "^2.6.0",
-            "chalk": "^2.3.0",
-            "cli-table": "^0.3.1",
-            "cross-spawn": "^6.0.5",
-            "dargs": "^5.1.0",
-            "dateformat": "^3.0.3",
-            "debug": "^3.1.0",
-            "detect-conflict": "^1.0.0",
-            "error": "^7.0.2",
-            "find-up": "^2.1.0",
-            "github-username": "^4.0.0",
-            "istextorbinary": "^2.2.1",
-            "lodash": "^4.17.10",
-            "make-dir": "^1.1.0",
-            "mem-fs-editor": "^4.0.0",
-            "minimist": "^1.2.0",
-            "pretty-bytes": "^4.0.2",
-            "read-chunk": "^2.1.0",
-            "read-pkg-up": "^3.0.0",
-            "rimraf": "^2.6.2",
-            "run-async": "^2.0.0",
-            "shelljs": "^0.8.0",
-            "text-table": "^0.2.0",
-            "through2": "^2.0.0",
-            "yeoman-environment": "^2.0.5"
-          }
-        }
-      }
-    },
     "webpack-dev-middleware": {
       "version": "1.12.2",
       "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz",
@@ -32943,16 +35250,13 @@
         }
       }
     },
-    "websocket": {
-      "version": "1.0.26",
-      "resolved": "https://registry.npmjs.org/websocket/-/websocket-1.0.26.tgz",
-      "integrity": "sha512-fjcrYDPIQxpTnqFQ9JjxUQcdvR89MFAOjPBlF+vjOt49w/XW4fJknUoMz/mDIn2eK1AdslVojcaOxOqyZZV8rw==",
-      "dev": true,
+    "webrtc-adapter": {
+      "version": "6.3.2",
+      "resolved": "https://registry.npmjs.org/webrtc-adapter/-/webrtc-adapter-6.3.2.tgz",
+      "integrity": "sha512-7pFMXpZCka7ScIQyk8Wo+fOr3OlKLtGd6YHqkHVT74zerpY2Siyds8sxsmkE0bNqsi/J1b0vDzN7WpB34dQzAA==",
       "requires": {
-        "debug": "^2.2.0",
-        "nan": "^2.3.3",
-        "typedarray-to-buffer": "^3.1.2",
-        "yaeti": "^0.0.6"
+        "rtcpeerconnection-shim": "^1.2.10",
+        "sdp": "^2.7.0"
       }
     },
     "websocket-driver": {
@@ -33150,17 +35454,6 @@
         "mkdirp": "^0.5.1"
       }
     },
-    "write-file-atomic": {
-      "version": "1.3.4",
-      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-1.3.4.tgz",
-      "integrity": "sha1-+Aek8LHZ6ROuekgRLmzDrxmRtF8=",
-      "dev": true,
-      "requires": {
-        "graceful-fs": "^4.1.11",
-        "imurmurhash": "^0.1.4",
-        "slide": "^1.1.5"
-      }
-    },
     "write-file-stdout": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/write-file-stdout/-/write-file-stdout-0.0.2.tgz",
@@ -33199,30 +35492,6 @@
         "xtend": "^4.0.0"
       }
     },
-    "xhr-request": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/xhr-request/-/xhr-request-1.1.0.tgz",
-      "integrity": "sha512-Y7qzEaR3FDtL3fP30k9wO/e+FBnBByZeybKOhASsGP30NIkRAAkKD/sCnLvgEfAIEC1rcmK7YG8f4oEnIrrWzA==",
-      "dev": true,
-      "requires": {
-        "buffer-to-arraybuffer": "^0.0.5",
-        "object-assign": "^4.1.1",
-        "query-string": "^5.0.1",
-        "simple-get": "^2.7.0",
-        "timed-out": "^4.0.1",
-        "url-set-query": "^1.0.0",
-        "xhr": "^2.0.4"
-      }
-    },
-    "xhr-request-promise": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.2.tgz",
-      "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
-      "dev": true,
-      "requires": {
-        "xhr-request": "^1.0.1"
-      }
-    },
     "xhr2": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/xhr2/-/xhr2-0.1.3.tgz",
@@ -33290,11 +35559,6 @@
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
       "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
     },
-    "yaeti": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
-      "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
-    },
     "yallist": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
diff --git a/package.json b/package.json
index be06a16f3..ec6ec47df 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "test:mascara:build:locales": "mkdirp dist/chrome && cp -R app/_locales dist/chrome/_locales",
     "test:mascara:build:background": "browserify mascara/src/background.js -o dist/mascara/background.js",
     "test:mascara:build:tests": "browserify test/integration/lib/first-time.js -o dist/mascara/tests.js",
-    "ganache:start": "ganache-cli -m 'phrase upgrade clock rough situate wedding elder clever doctor stamp excess tent'",
+    "ganache:start": "ganache-cli --noVMErrorsOnRPCResponse -m 'phrase upgrade clock rough situate wedding elder clever doctor stamp excess tent'",
     "sentry:publish": "node ./development/sentry-publish.js",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
@@ -75,6 +75,7 @@
   },
   "dependencies": {
     "@material-ui/core": "1.0.0",
+    "@zxing/library": "^0.8.0",
     "abi-decoder": "^1.0.9",
     "asmcrypto.js": "0.22.0",
     "async": "^2.5.0",
@@ -97,17 +98,22 @@
     "debounce-stream": "^2.0.0",
     "deep-extend": "^0.5.1",
     "detect-node": "^2.0.3",
+    "detectrtc": "^1.3.6",
     "disc": "^1.3.2",
     "dnode": "^1.2.2",
     "end-of-stream": "^1.1.0",
     "ensnare": "^1.0.0",
     "eslint-plugin-react": "^7.4.0",
     "eth-bin-to-ops": "^1.0.1",
+    "eth-block-tracker": "^4.0.1",
     "eth-contract-metadata": "github:MetaMask/eth-contract-metadata#master",
+    "eth-json-rpc-middleware": "^2.4.0",
+    "eth-keyring-controller": "^3.1.4",
     "eth-ens-namehash": "^2.0.8",
     "eth-hd-keyring": "^1.2.2",
-    "eth-json-rpc-filters": "^1.2.6",
+    "eth-json-rpc-filters": "^2.1.1",
     "eth-json-rpc-infura": "^3.0.0",
+    "eth-ledger-bridge-keyring": "^0.1.0",
     "eth-method-registry": "^1.0.0",
     "eth-phishing-detect": "^1.1.4",
     "eth-query": "^2.1.2",
@@ -143,7 +149,7 @@
     "iframe-stream": "^3.0.0",
     "inject-css": "^0.1.1",
     "jazzicon": "^1.2.0",
-    "json-rpc-engine": "^3.6.1",
+    "json-rpc-engine": "^3.7.3",
     "json-rpc-middleware-stream": "^1.0.1",
     "lodash.debounce": "^4.0.8",
     "lodash.memoize": "^4.1.2",
@@ -200,12 +206,13 @@
     "shallow-copy": "0.0.1",
     "sw-controller": "^1.0.3",
     "sw-stream": "^2.0.2",
+    "swappable-obj-proxy": "^1.0.2",
     "textarea-caret": "^3.0.1",
     "valid-url": "^1.0.9",
     "vreme": "^3.0.2",
     "web3": "^0.20.1",
-    "web3-provider-engine": "^14.0.5",
     "web3-stream-provider": "^3.0.1",
+    "webrtc-adapter": "^6.3.0",
     "xtend": "^4.0.1"
   },
   "devDependencies": {
@@ -246,6 +253,7 @@
     "eth-json-rpc-middleware": "^1.6.0",
     "eth-keyring-controller": "^3.3.1",
     "file-loader": "^1.1.11",
+    "fs-extra": "^6.0.1",
     "fs-promise": "^2.0.3",
     "ganache-cli": "^6.1.0",
     "ganache-core": "^2.1.5",
@@ -290,6 +298,7 @@
     "open": "0.0.5",
     "path": "^0.12.7",
     "png-file-stream": "^1.0.0",
+    "prepend-file": "^1.3.1",
     "prompt": "^1.0.0",
     "proxyquire": "2.0.1",
     "qs": "^6.2.0",
diff --git a/test/e2e/beta/contract-test/contract.js b/test/e2e/beta/contract-test/contract.js
index 51891ea21..39e7238ae 100644
--- a/test/e2e/beta/contract-test/contract.js
+++ b/test/e2e/beta/contract-test/contract.js
@@ -38,18 +38,20 @@ const transferTokens = document.getElementById('transferTokens')
 const approveTokens = document.getElementById('approveTokens')
 
 deployButton.addEventListener('click', async function (event) {
+  document.getElementById('contractStatus').innerHTML = 'Deploying'
+
   var piggybank = await piggybankContract.new(
     {
       from: web3.eth.accounts[0],
       data: '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',
       gas: '4700000',
     }, function (e, contract) {
-      console.log(e, contract)
+      if (e) {
+        throw e
+      }
       if (typeof contract.address !== 'undefined') {
         console.log('Contract mined! address: ' + contract.address + ' transactionHash: ' + contract.transactionHash)
 
-        console.log(`contract`, contract)
-
         document.getElementById('contractStatus').innerHTML = 'Deployed'
 
         depositButton.addEventListener('click', function (event) {
diff --git a/test/e2e/beta/contract-test/index.html b/test/e2e/beta/contract-test/index.html
index f6e6f44c7..0d422ef20 100644
--- a/test/e2e/beta/contract-test/index.html
+++ b/test/e2e/beta/contract-test/index.html
@@ -11,7 +11,7 @@
       <button id="withdrawButton">Withdraw</button>
     </div>
     <div id="contractStatus" style="display: flex; font-size: 1rem;">
-      Not yet deployed
+      Not clicked
     </div>
   </div>
   <div style="display: flex; flex-flow: column;">
diff --git a/test/e2e/beta/from-import-beta-ui.spec.js b/test/e2e/beta/from-import-beta-ui.spec.js
index 2b271cdfe..abc684b4f 100644
--- a/test/e2e/beta/from-import-beta-ui.spec.js
+++ b/test/e2e/beta/from-import-beta-ui.spec.js
@@ -89,7 +89,14 @@ describe('Using MetaMask with an existing account', function () {
         await driver.wait(until.stalenessOf(overlay))
       } catch (e) {}
 
-      const button = await findElement(driver, By.xpath("//button[contains(text(), 'Try it now')]"))
+      let button
+      try {
+        button = await findElement(driver, By.xpath("//button[contains(text(), 'Try it now')]"))
+      } catch (e) {
+        await loadExtension(driver, extensionId)
+        await delay(largeDelayMs)
+        button = await findElement(driver, By.xpath("//button[contains(text(), 'Try it now')]"))
+      }
       await button.click()
       await delay(regularDelayMs)
 
@@ -359,7 +366,10 @@ describe('Using MetaMask with an existing account', function () {
     })
 
     it('should open the TREZOR Connect popup', async () => {
-      const connectButtons = await findElements(driver, By.xpath(`//button[contains(text(), 'Connect to Trezor')]`))
+      const trezorButton = await findElements(driver, By.css('.hw-connect__btn'))
+      await trezorButton[1].click()
+      await delay(regularDelayMs)
+      const connectButtons = await findElements(driver, By.xpath(`//button[contains(text(), 'Connect')]`))
       await connectButtons[0].click()
       await delay(regularDelayMs)
       const allWindows = await driver.getAllWindowHandles()
diff --git a/test/e2e/beta/helpers.js b/test/e2e/beta/helpers.js
index 828f87db7..73289e526 100644
--- a/test/e2e/beta/helpers.js
+++ b/test/e2e/beta/helpers.js
@@ -2,8 +2,8 @@ const fs = require('fs')
 const mkdirp = require('mkdirp')
 const pify = require('pify')
 const assert = require('assert')
-const {until} = require('selenium-webdriver')
 const { delay } = require('../func')
+const { until } = require('selenium-webdriver')
 
 module.exports = {
   assertElementNotPresent,
@@ -122,12 +122,14 @@ async function closeAllWindowHandlesExcept (driver, exceptions, windowHandles) {
 }
 
 async function assertElementNotPresent (webdriver, driver, by) {
+  let dataTab
   try {
-    const dataTab = await findElement(driver, by, 4000)
-    if (dataTab) {
-      assert(false, 'Data tab should not be present')
-    }
+    dataTab = await findElement(driver, by, 4000)
   } catch (err) {
-    assert(err instanceof webdriver.error.NoSuchElementError)
+    console.log(err)
+    assert(err instanceof webdriver.error.NoSuchElementError || err instanceof webdriver.error.TimeoutError)
+  }
+  if (dataTab) {
+    assert(false, 'Data tab should not be present')
   }
 }
diff --git a/test/e2e/beta/metamask-beta-ui.spec.js b/test/e2e/beta/metamask-beta-ui.spec.js
index 3ad5c2d61..aab1dc87e 100644
--- a/test/e2e/beta/metamask-beta-ui.spec.js
+++ b/test/e2e/beta/metamask-beta-ui.spec.js
@@ -88,7 +88,14 @@ describe('MetaMask', function () {
         await driver.wait(until.stalenessOf(overlay))
       } catch (e) {}
 
-      const button = await findElement(driver, By.xpath("//button[contains(text(), 'Try it now')]"))
+      let button
+      try {
+        button = await findElement(driver, By.xpath("//button[contains(text(), 'Try it now')]"))
+      } catch (e) {
+        await loadExtension(driver, extensionId)
+        await delay(largeDelayMs)
+        button = await findElement(driver, By.xpath("//button[contains(text(), 'Try it now')]"))
+      }
       await button.click()
       await delay(regularDelayMs)
 
@@ -345,8 +352,8 @@ describe('MetaMask', function () {
       const passwordInputs = await driver.findElements(By.css('input'))
       await delay(regularDelayMs)
 
-      passwordInputs[0].sendKeys('correct horse battery staple')
-      passwordInputs[1].sendKeys('correct horse battery staple')
+      await passwordInputs[0].sendKeys('correct horse battery staple')
+      await passwordInputs[1].sendKeys('correct horse battery staple')
       await driver.findElement(By.css('.first-time-flow__button')).click()
       await delay(regularDelayMs)
     })
@@ -438,7 +445,7 @@ describe('MetaMask', function () {
       await driver.switchTo().window(windowHandles[2])
       await delay(regularDelayMs)
 
-      assertElementNotPresent(webdriver, driver, By.xpath(`//li[contains(text(), 'Data')]`))
+      await assertElementNotPresent(webdriver, driver, By.xpath(`//li[contains(text(), 'Data')]`))
 
       const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`), 10000)
       await confirmButton.click()
@@ -453,6 +460,11 @@ describe('MetaMask', function () {
       const transactions = await findElements(driver, By.css('.tx-list-item'))
       assert.equal(transactions.length, 2)
 
+      await findElement(driver, By.xpath(`//span[contains(text(), 'Submitted')]`))
+
+      const txStatuses = await findElements(driver, By.css('.tx-list-status'))
+      await driver.wait(until.elementTextMatches(txStatuses[0], /Confirmed/))
+
       const txValues = await findElement(driver, By.css('.tx-list-value'))
       await driver.wait(until.elementTextMatches(txValues, /3\sETH/), 10000)
     })
@@ -503,6 +515,8 @@ describe('MetaMask', function () {
       await confirmButton.click()
       await delay(regularDelayMs)
 
+      await findElement(driver, By.xpath(`//span[contains(text(), 'Submitted')]`))
+
       const txStatuses = await findElements(driver, By.css('.tx-list-status'))
       await driver.wait(until.elementTextMatches(txStatuses[0], /Confirmed/))
 
@@ -511,19 +525,28 @@ describe('MetaMask', function () {
       await delay(regularDelayMs)
     })
 
+    it('confirms a deploy contract transaction in the popup', async () => {
+      const windowHandles = await driver.getAllWindowHandles()
+      const popup = windowHandles[2]
+      await driver.switchTo().window(popup)
+      const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
+      await confirmButton.click()
+      await delay(regularDelayMs)
+    })
+
     it('calls and confirms a contract method where ETH is sent', async () => {
       await driver.switchTo().window(dapp)
       await delay(regularDelayMs)
 
-      let contractStatus = await driver.findElement(By.css('#contractStatus'))
-      await driver.wait(until.elementTextMatches(contractStatus, /Deployed/))
+      let contractStatus = await findElement(driver, By.css('#contractStatus'))
+      await driver.wait(until.elementTextMatches(contractStatus, /Deployed/), 15000)
 
       const depositButton = await findElement(driver, By.css('#depositButton'))
       await depositButton.click()
       await delay(largeDelayMs)
 
-      contractStatus = await driver.findElement(By.css('#contractStatus'))
-      await driver.wait(until.elementTextMatches(contractStatus, /Deposit\sinitiated/))
+      contractStatus = await findElement(driver, By.css('#contractStatus'))
+      await driver.wait(until.elementTextMatches(contractStatus, /Deposit\sinitiated/), 10000)
 
       await driver.switchTo().window(extension)
       await delay(largeDelayMs)
@@ -539,8 +562,8 @@ describe('MetaMask', function () {
       await configureGas.click()
       await delay(regularDelayMs)
 
-      const gasModal = await driver.findElement(By.css('span .modal'))
-      await driver.wait(until.elementLocated(By.css('.customize-gas__title')))
+      const gasModal = await findElement(driver, By.css('span .modal'))
+      await driver.wait(until.elementLocated(By.css('.customize-gas__title')), 10000)
 
       const [gasPriceInput, gasLimitInput] = await findElements(driver, By.css('.customize-gas-input'))
       await gasPriceInput.clear()
@@ -612,20 +635,21 @@ describe('MetaMask', function () {
 
   describe('Add a custom token from a dapp', () => {
     it('creates a new token', async () => {
-      const windowHandles = await driver.getAllWindowHandles()
+      let windowHandles = await driver.getAllWindowHandles()
       const extension = windowHandles[0]
       const dapp = windowHandles[1]
       await delay(regularDelayMs * 2)
 
       await driver.switchTo().window(dapp)
-      await delay(regularDelayMs)
+      await delay(regularDelayMs * 2)
 
       const createToken = await findElement(driver, By.xpath(`//button[contains(text(), 'Create Token')]`))
       await createToken.click()
-      await delay(regularDelayMs)
+      await delay(largeDelayMs)
 
-      await driver.switchTo().window(extension)
-      await loadExtension(driver, extensionId)
+      windowHandles = await driver.getAllWindowHandles()
+      const popup = windowHandles[2]
+      await driver.switchTo().window(popup)
       await delay(regularDelayMs)
 
       const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
@@ -1000,4 +1024,4 @@ describe('MetaMask', function () {
       await delay(regularDelayMs)
     })
   })
-})
+})
\ No newline at end of file
diff --git a/test/e2e/func.js b/test/e2e/func.js
index 7b1730959..13dfb82f9 100644
--- a/test/e2e/func.js
+++ b/test/e2e/func.js
@@ -1,14 +1,19 @@
 require('chromedriver')
 require('geckodriver')
-const fs = require('fs')
+const fs = require('fs-extra')
 const os = require('os')
 const path = require('path')
+const pify = require('pify')
+const prependFile = pify(require('prepend-file'))
 const webdriver = require('selenium-webdriver')
 const Command = require('selenium-webdriver/lib/command').Command
 const By = webdriver.By
 
 module.exports = {
   delay,
+  createModifiedTestBuild,
+  setupBrowserAndExtension,
+  verboseReportOnFailure,
   buildChromeWebDriver,
   buildFirefoxWebdriver,
   installWebExt,
@@ -20,6 +25,37 @@ function delay (time) {
   return new Promise(resolve => setTimeout(resolve, time))
 }
 
+async function createModifiedTestBuild ({ browser, srcPath }) {
+  // copy build to test-builds directory
+  const extPath = path.resolve(`test-builds/${browser}`)
+  await fs.ensureDir(extPath)
+  await fs.copy(srcPath, extPath)
+  // inject METAMASK_TEST_CONFIG setting default test network
+  const config = { NetworkController: { provider: { type: 'localhost' } } }
+  await prependFile(`${extPath}/background.js`, `window.METAMASK_TEST_CONFIG=${JSON.stringify(config)};\n`)
+  return { extPath }
+}
+
+async function setupBrowserAndExtension ({ browser, extPath }) {
+  let driver, extensionId, extensionUri
+
+  if (browser === 'chrome') {
+    driver = buildChromeWebDriver(extPath)
+    extensionId = await getExtensionIdChrome(driver)
+    extensionUri = `chrome-extension://${extensionId}/home.html`
+  } else if (browser === 'firefox') {
+    driver = buildFirefoxWebdriver()
+    await installWebExt(driver, extPath)
+    await delay(700)
+    extensionId = await getExtensionIdFirefox(driver)
+    extensionUri = `moz-extension://${extensionId}/home.html`
+  } else {
+    throw new Error(`Unknown Browser "${browser}"`)
+  }
+
+  return { driver, extensionId, extensionUri }
+}
+
 function buildChromeWebDriver (extPath) {
   const tmpProfile = fs.mkdtempSync(path.join(os.tmpdir(), 'mm-chrome-profile'))
   return new webdriver.Builder()
@@ -61,3 +97,13 @@ async function installWebExt (driver, extension) {
 
   return await driver.schedule(cmd, 'installWebExt(' + extension + ')')
 }
+
+async function verboseReportOnFailure ({ browser, driver, title }) {
+  const artifactDir = `./test-artifacts/${browser}/${title}`
+  const filepathBase = `${artifactDir}/test-failure`
+  await fs.ensureDir(artifactDir)
+  const screenshot = await driver.takeScreenshot()
+  await fs.writeFile(`${filepathBase}-screenshot.png`, screenshot, { encoding: 'base64' })
+  const htmlSource = await driver.getPageSource()
+  await fs.writeFile(`${filepathBase}-dom.html`, htmlSource)
+}
diff --git a/test/e2e/metamask.spec.js b/test/e2e/metamask.spec.js
index ac7600f09..38246a044 100644
--- a/test/e2e/metamask.spec.js
+++ b/test/e2e/metamask.spec.js
@@ -1,49 +1,41 @@
-const fs = require('fs')
-const mkdirp = require('mkdirp')
 const path = require('path')
 const assert = require('assert')
-const pify = require('pify')
-const webdriver = require('selenium-webdriver')
-const { By, Key, until } = webdriver
-const { delay, buildChromeWebDriver, buildFirefoxWebdriver, installWebExt, getExtensionIdChrome, getExtensionIdFirefox } = require('./func')
+const { By, Key, until } = require('selenium-webdriver')
+const { delay, createModifiedTestBuild, setupBrowserAndExtension, verboseReportOnFailure } = require('./func')
 
 describe('Metamask popup page', function () {
-  let driver, accountAddress, tokenAddress, extensionId
+  const browser = process.env.SELENIUM_BROWSER
+  let driver, accountAddress, tokenAddress, extensionUri
 
   this.timeout(0)
 
   before(async function () {
-    if (process.env.SELENIUM_BROWSER === 'chrome') {
-      const extPath = path.resolve('dist/chrome')
-      driver = buildChromeWebDriver(extPath)
-      extensionId = await getExtensionIdChrome(driver)
-      await driver.get(`chrome-extension://${extensionId}/popup.html`)
-
-    } else if (process.env.SELENIUM_BROWSER === 'firefox') {
-      const extPath = path.resolve('dist/firefox')
-      driver = buildFirefoxWebdriver()
-      await installWebExt(driver, extPath)
-      await delay(700)
-      extensionId = await getExtensionIdFirefox(driver)
-      await driver.get(`moz-extension://${extensionId}/popup.html`)
-    }
+    const srcPath = path.resolve(`dist/${browser}`)
+    const { extPath } = await createModifiedTestBuild({ browser, srcPath })
+    const installResult = await setupBrowserAndExtension({ browser, extPath })
+    driver = installResult.driver
+    extensionUri = installResult.extensionUri
+
+    await driver.get(extensionUri)
+    await delay(300)
   })
 
   afterEach(async function () {
     // logs command not supported in firefox
     // https://github.com/SeleniumHQ/selenium/issues/2910
-    if (process.env.SELENIUM_BROWSER === 'chrome') {
+    if (browser === 'chrome') {
       // check for console errors
       const errors = await checkBrowserForConsoleErrors()
       if (errors.length) {
         const errorReports = errors.map(err => err.message)
         const errorMessage = `Errors found in browser console:\n${errorReports.join('\n')}`
-        this.test.error(new Error(errorMessage))
+        console.error(new Error(errorMessage))
+
       }
     }
     // gather extra data if test failed
     if (this.currentTest.state === 'failed') {
-      await verboseReportOnFailure(this.currentTest)
+      await verboseReportOnFailure({ browser, driver, title: this.currentTest.title })
     }
   })
 
@@ -54,7 +46,6 @@ describe('Metamask popup page', function () {
   describe('Setup', function () {
 
     it('switches to Chrome extensions list', async function () {
-      await delay(300)
       const windowHandles = await driver.getAllWindowHandles()
       await driver.switchTo().window(windowHandles[0])
     })
@@ -98,6 +89,7 @@ describe('Metamask popup page', function () {
     it('allows the button to be clicked when scrolled to the bottom of TOU', async () => {
       const button = await driver.findElement(By.css('#app-content > div > div.app-primary.from-right > div > div.flex-column.flex-center.flex-grow > button'))
       await button.click()
+      await delay(300)
     })
 
     it('shows privacy notice', async () => {
@@ -108,7 +100,6 @@ describe('Metamask popup page', function () {
     })
 
     it('shows phishing notice', async () => {
-      await delay(300)
       const noticeHeader = await driver.findElement(By.css('.terms-header')).getText()
       assert.equal(noticeHeader, 'PHISHING WARNING', 'shows phishing warning')
       const element = await driver.findElement(By.css('.markdown'))
@@ -295,11 +286,7 @@ describe('Metamask popup page', function () {
     })
 
     it('navigates back to MetaMask popup in the tab', async function () {
-      if (process.env.SELENIUM_BROWSER === 'chrome') {
-        await driver.get(`chrome-extension://${extensionId}/popup.html`)
-      } else if (process.env.SELENIUM_BROWSER === 'firefox') {
-        await driver.get(`moz-extension://${extensionId}/popup.html`)
-      }
+      await driver.get(extensionUri)
       await delay(700)
     })
   })
@@ -362,21 +349,4 @@ describe('Metamask popup page', function () {
     return matchedErrorObjects
   }
 
-  async function verboseReportOnFailure (test) {
-    let artifactDir
-    if (process.env.SELENIUM_BROWSER === 'chrome') {
-      artifactDir = `./test-artifacts/chrome/${test.title}`
-    } else if (process.env.SELENIUM_BROWSER === 'firefox') {
-      artifactDir = `./test-artifacts/firefox/${test.title}`
-    }
-    const filepathBase = `${artifactDir}/test-failure`
-    await pify(mkdirp)(artifactDir)
-    // capture screenshot
-    const screenshot = await driver.takeScreenshot()
-    await pify(fs.writeFile)(`${filepathBase}-screenshot.png`, screenshot, { encoding: 'base64' })
-    // capture dom source
-    const htmlSource = await driver.getPageSource()
-    await pify(fs.writeFile)(`${filepathBase}-dom.html`, htmlSource)
-  }
-
 })
diff --git a/test/helper.js b/test/helper.js
index a3abbebf2..51f28de17 100644
--- a/test/helper.js
+++ b/test/helper.js
@@ -1,10 +1,21 @@
+const Ganache = require('ganache-core')
+const nock = require('nock')
 import Enzyme from 'enzyme'
 import Adapter from 'enzyme-adapter-react-15'
 
+nock.disableNetConnect()
+nock.enableNetConnect('localhost')
+
 Enzyme.configure({ adapter: new Adapter() })
 // disallow promises from swallowing errors
 enableFailureOnUnhandledPromiseRejection()
 
+// ganache server
+const server = Ganache.server()
+server.listen(8545, () => {
+  console.log('Ganache Testrpc is running on "http://localhost:8545"')
+})
+
 // logging util
 var log = require('loglevel')
 log.setDefaultLevel(5)
@@ -14,6 +25,9 @@ global.log = log
 // polyfills
 //
 
+// fetch
+global.fetch = require('isomorphic-fetch')
+
 // dom
 require('jsdom-global')()
 
diff --git a/test/lib/createTxMeta.js b/test/lib/createTxMeta.js
new file mode 100644
index 000000000..0e88e3cfb
--- /dev/null
+++ b/test/lib/createTxMeta.js
@@ -0,0 +1,16 @@
+const txStateHistoryHelper = require('../../app/scripts/controllers/transactions/lib/tx-state-history-helper')
+
+module.exports = createTxMeta
+
+function createTxMeta (partialMeta) {
+  const txMeta = Object.assign({
+    status: 'unapproved',
+    txParams: {},
+  }, partialMeta)
+  // initialize history
+  txMeta.history = []
+  // capture initial snapshot of txMeta for history
+  const snapshot = txStateHistoryHelper.snapshotFromTxMeta(txMeta)
+  txMeta.history.push(snapshot)
+  return txMeta
+}
diff --git a/test/unit/app/controllers/currency-controller-test.js b/test/unit/app/controllers/currency-controller-test.js
index 1941d1c43..7c4644d9f 100644
--- a/test/unit/app/controllers/currency-controller-test.js
+++ b/test/unit/app/controllers/currency-controller-test.js
@@ -1,6 +1,3 @@
-// polyfill fetch
-global.fetch = global.fetch || require('isomorphic-fetch')
-
 const assert = require('assert')
 const nock = require('nock')
 const CurrencyController = require('../../../../app/scripts/controllers/currency')
diff --git a/test/unit/app/controllers/detect-tokens-test.js b/test/unit/app/controllers/detect-tokens-test.js
index d6c3fad8a..e5539256e 100644
--- a/test/unit/app/controllers/detect-tokens-test.js
+++ b/test/unit/app/controllers/detect-tokens-test.js
@@ -1,4 +1,5 @@
 const assert = require('assert')
+const nock = require('nock')
 const sinon = require('sinon')
 const ObservableStore = require('obs-store')
 const DetectTokensController = require('../../../../app/scripts/controllers/detect-tokens')
@@ -6,15 +7,34 @@ const NetworkController = require('../../../../app/scripts/controllers/network/n
 const PreferencesController = require('../../../../app/scripts/controllers/preferences')
 
 describe('DetectTokensController', () => {
-    const sandbox = sinon.createSandbox()
-    let clock, keyringMemStore, network, preferences
-    beforeEach(async () => {
-      keyringMemStore = new ObservableStore({ isUnlocked: false})
-      network = new NetworkController({ provider: { type: 'mainnet' }})
-      preferences = new PreferencesController({ network })
-    })
-      after(() => {
-        sandbox.restore()
+  const sandbox = sinon.createSandbox()
+  let clock, keyringMemStore, network, preferences, controller
+
+  const noop = () => {}
+
+  const networkControllerProviderConfig = {
+    getAccounts: noop,
+  }
+
+  beforeEach(async () => {
+
+
+    nock('https://api.infura.io')
+      .get(/.*/)
+      .reply(200)
+
+    keyringMemStore = new ObservableStore({ isUnlocked: false})
+    network = new NetworkController()
+    preferences = new PreferencesController({ network })
+    controller = new DetectTokensController({ preferences: preferences, network: network, keyringMemStore: keyringMemStore })
+
+    network.initializeProvider(networkControllerProviderConfig)
+
+  })
+
+  after(() => {
+    sandbox.restore()
+    nock.cleanAll()
   })
 
   it('should poll on correct interval', async () => {
@@ -26,7 +46,10 @@ describe('DetectTokensController', () => {
 
   it('should be called on every polling period', async () => {
     clock = sandbox.useFakeTimers()
+    const network = new NetworkController()
+    network.initializeProvider(networkControllerProviderConfig)
     network.setProviderType('mainnet')
+    const preferences = new PreferencesController({ network })
     const controller = new DetectTokensController({ preferences: preferences, network: network, keyringMemStore: keyringMemStore })
     controller.isOpen = true
     controller.isUnlocked = true
@@ -44,8 +67,6 @@ describe('DetectTokensController', () => {
   })
 
   it('should not check tokens while in test network', async () => {
-    network.setProviderType('rinkeby')
-    const controller = new DetectTokensController({ preferences: preferences, network: network, keyringMemStore: keyringMemStore })
     controller.isOpen = true
     controller.isUnlocked = true
 
@@ -58,7 +79,6 @@ describe('DetectTokensController', () => {
   })
 
   it('should only check and add tokens while in main network', async () => {
-    network.setProviderType('mainnet')
     const controller = new DetectTokensController({ preferences: preferences, network: network, keyringMemStore: keyringMemStore })
     controller.isOpen = true
     controller.isUnlocked = true
@@ -75,7 +95,6 @@ describe('DetectTokensController', () => {
   })
 
   it('should not detect same token while in main network', async () => {
-    network.setProviderType('mainnet')
     preferences.addToken('0x0d262e5dc4a06a0f1c90ce79c7a60c09dfc884e4', 'J8T', 8)
     const controller = new DetectTokensController({ preferences: preferences, network: network, keyringMemStore: keyringMemStore })
     controller.isOpen = true
@@ -93,8 +112,6 @@ describe('DetectTokensController', () => {
   })
 
   it('should trigger detect new tokens when change address', async () => {
-    network.setProviderType('mainnet')
-    const controller = new DetectTokensController({ preferences: preferences, network: network, keyringMemStore: keyringMemStore })
     controller.isOpen = true
     controller.isUnlocked = true
     var stub = sandbox.stub(controller, 'detectNewTokens')
@@ -103,8 +120,6 @@ describe('DetectTokensController', () => {
   })
 
   it('should trigger detect new tokens when submit password', async () => {
-    network.setProviderType('mainnet')
-    const controller = new DetectTokensController({ preferences: preferences, network: network, keyringMemStore: keyringMemStore })
     controller.isOpen = true
     controller.selectedAddress = '0x0'
     var stub = sandbox.stub(controller, 'detectNewTokens')
@@ -113,8 +128,6 @@ describe('DetectTokensController', () => {
   })
 
   it('should not trigger detect new tokens when not open or not unlocked', async () => {
-    network.setProviderType('mainnet')
-    const controller = new DetectTokensController({ preferences: preferences, network: network, keyringMemStore: keyringMemStore })
     controller.isOpen = true
     controller.isUnlocked = false
     var stub = sandbox.stub(controller, 'detectTokenBalance')
@@ -125,4 +138,4 @@ describe('DetectTokensController', () => {
     clock.tick(180000)
     sandbox.assert.notCalled(stub)
   })
-})
+})
\ No newline at end of file
diff --git a/test/unit/app/controllers/metamask-controller-test.js b/test/unit/app/controllers/metamask-controller-test.js
index 9164fe246..1fc604c9c 100644
--- a/test/unit/app/controllers/metamask-controller-test.js
+++ b/test/unit/app/controllers/metamask-controller-test.js
@@ -3,16 +3,22 @@ const sinon = require('sinon')
 const clone = require('clone')
 const nock = require('nock')
 const createThoughStream = require('through2').obj
-const MetaMaskController = require('../../../../app/scripts/metamask-controller')
 const blacklistJSON = require('eth-phishing-detect/src/config')
-const firstTimeState = require('../../../../app/scripts/first-time-state')
+const MetaMaskController = require('../../../../app/scripts/metamask-controller')
+const firstTimeState = require('../../../unit/localhostState')
+const createTxMeta = require('../../../lib/createTxMeta')
+const EthQuery = require('eth-query')
 
 const currentNetworkId = 42
 const DEFAULT_LABEL = 'Account 1'
+const DEFAULT_LABEL_2 = 'Account 2'
 const TEST_SEED = 'debris dizzy just program just float decrease vacant alarm reduce speak stadium'
 const TEST_ADDRESS = '0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc'
+const TEST_ADDRESS_2 = '0xec1adf982415d2ef5ec55899b9bfb8bc0f29251b'
+const TEST_ADDRESS_3 = '0xeb9e64b93097bc15f01f13eae97015c57ab64823'
 const TEST_SEED_ALT = 'setup olympic issue mobile velvet surge alcohol burger horse view reopen gentle'
 const TEST_ADDRESS_ALT = '0xc42edfcc21ed14dda456aa0756c153f7985d8813'
+const CUSTOM_RPC_URL = 'http://localhost:8545'
 
 describe('MetaMaskController', function () {
   let metamaskController
@@ -134,6 +140,9 @@ describe('MetaMaskController', function () {
   describe('#createNewVaultAndRestore', function () {
     it('should be able to call newVaultAndRestore despite a mistake.', async function () {
       const password = 'what-what-what'
+      sandbox.stub(metamaskController, 'getBalance')
+      metamaskController.getBalance.callsFake(() => { return Promise.resolve('0x0') })
+
       await metamaskController.createNewVaultAndRestore(password, TEST_SEED.slice(0, -1)).catch((e) => null)
       await metamaskController.createNewVaultAndRestore(password, TEST_SEED)
 
@@ -141,6 +150,9 @@ describe('MetaMaskController', function () {
     })
 
     it('should clear previous identities after vault restoration', async () => {
+      sandbox.stub(metamaskController, 'getBalance')
+      metamaskController.getBalance.callsFake(() => { return Promise.resolve('0x0') })
+
       await metamaskController.createNewVaultAndRestore('foobar1337', TEST_SEED)
       assert.deepEqual(metamaskController.getState().identities, {
         [TEST_ADDRESS]: { address: TEST_ADDRESS, name: DEFAULT_LABEL },
@@ -156,6 +168,54 @@ describe('MetaMaskController', function () {
         [TEST_ADDRESS_ALT]: { address: TEST_ADDRESS_ALT, name: DEFAULT_LABEL },
       })
     })
+
+    it('should restore any consecutive accounts with balances', async () => {
+      sandbox.stub(metamaskController, 'getBalance')
+      metamaskController.getBalance.withArgs(TEST_ADDRESS).callsFake(() => {
+        return Promise.resolve('0x14ced5122ce0a000')
+      })
+      metamaskController.getBalance.withArgs(TEST_ADDRESS_2).callsFake(() => {
+        return Promise.resolve('0x0')
+      })
+      metamaskController.getBalance.withArgs(TEST_ADDRESS_3).callsFake(() => {
+        return Promise.resolve('0x14ced5122ce0a000')
+      })
+
+      await metamaskController.createNewVaultAndRestore('foobar1337', TEST_SEED)
+      assert.deepEqual(metamaskController.getState().identities, {
+        [TEST_ADDRESS]: { address: TEST_ADDRESS, name: DEFAULT_LABEL },
+        [TEST_ADDRESS_2]: { address: TEST_ADDRESS_2, name: DEFAULT_LABEL_2 },
+      })
+    })
+  })
+
+  describe('#getBalance', () => {
+    it('should return the balance known by accountTracker', async () => {
+      const accounts = {}
+      const balance = '0x14ced5122ce0a000'
+      accounts[TEST_ADDRESS] = { balance: balance }
+
+      metamaskController.accountTracker.store.putState({ accounts: accounts })
+
+      const gotten = await metamaskController.getBalance(TEST_ADDRESS)
+
+      assert.equal(balance, gotten)
+    })
+
+    it('should ask the network for a balance when not known by accountTracker', async () => {
+      const accounts = {}
+      const balance = '0x14ced5122ce0a000'
+      const ethQuery = new EthQuery()
+      sinon.stub(ethQuery, 'getBalance').callsFake((account, callback) => {
+        callback(undefined, balance)
+      })
+
+      metamaskController.accountTracker.store.putState({ accounts: accounts })
+
+      const gotten = await metamaskController.getBalance(TEST_ADDRESS, ethQuery)
+
+      assert.equal(balance, gotten)
+    })
   })
 
   describe('#getApi', function () {
@@ -226,9 +286,9 @@ describe('MetaMaskController', function () {
 
     it('should throw if it receives an unknown device name', async function () {
       try {
-        await metamaskController.connectHardware('Some random device name', 0)
+        await metamaskController.connectHardware('Some random device name', 0, `m/44/0'/0'`)
       } catch (e) {
-        assert.equal(e, 'Error: MetamaskController:connectHardware - Unknown device')
+        assert.equal(e, 'Error: MetamaskController:getKeyringForDevice - Unknown device')
       }
     })
 
@@ -242,14 +302,24 @@ describe('MetaMaskController', function () {
       assert.equal(keyrings.length, 1)
     })
 
+    it('should add the Ledger Hardware keyring', async function () {
+      sinon.spy(metamaskController.keyringController, 'addNewKeyring')
+      await metamaskController.connectHardware('ledger', 0).catch((e) => null)
+      const keyrings = await metamaskController.keyringController.getKeyringsByType(
+        'Ledger Hardware'
+      )
+      assert.equal(metamaskController.keyringController.addNewKeyring.getCall(0).args, 'Ledger Hardware')
+      assert.equal(keyrings.length, 1)
+    })
+
   })
 
   describe('checkHardwareStatus', function () {
     it('should throw if it receives an unknown device name', async function () {
       try {
-        await metamaskController.checkHardwareStatus('Some random device name')
+        await metamaskController.checkHardwareStatus('Some random device name', `m/44/0'/0'`)
       } catch (e) {
-        assert.equal(e, 'Error: MetamaskController:checkHardwareStatus - Unknown device')
+        assert.equal(e, 'Error: MetamaskController:getKeyringForDevice - Unknown device')
       }
     })
 
@@ -265,7 +335,7 @@ describe('MetaMaskController', function () {
       try {
         await metamaskController.forgetDevice('Some random device name')
       } catch (e) {
-        assert.equal(e, 'Error: MetamaskController:forgetDevice - Unknown device')
+        assert.equal(e, 'Error: MetamaskController:getKeyringForDevice - Unknown device')
       }
     })
 
@@ -282,7 +352,7 @@ describe('MetaMaskController', function () {
     })
   })
 
-  describe('unlockTrezorAccount', function () {
+  describe('unlockHardwareWalletAccount', function () {
     let accountToUnlock
     let windowOpenStub
     let addNewAccountStub
@@ -305,16 +375,20 @@ describe('MetaMaskController', function () {
       sinon.spy(metamaskController.preferencesController, 'setAddresses')
       sinon.spy(metamaskController.preferencesController, 'setSelectedAddress')
       sinon.spy(metamaskController.preferencesController, 'setAccountLabel')
-      await metamaskController.connectHardware('trezor', 0).catch((e) => null)
-      await metamaskController.unlockTrezorAccount(accountToUnlock).catch((e) => null)
+      await metamaskController.connectHardware('trezor', 0, `m/44/0'/0'`).catch((e) => null)
+      await metamaskController.unlockHardwareWalletAccount(accountToUnlock, 'trezor', `m/44/0'/0'`)
     })
 
     afterEach(function () {
-      metamaskController.keyringController.addNewAccount.restore()
       window.open.restore()
+      metamaskController.keyringController.addNewAccount.restore()
+      metamaskController.keyringController.getAccounts.restore()
+      metamaskController.preferencesController.setAddresses.restore()
+      metamaskController.preferencesController.setSelectedAddress.restore()
+      metamaskController.preferencesController.setAccountLabel.restore()
     })
 
-    it('should set accountToUnlock in the keyring', async function () {
+    it('should set unlockedAccount in the keyring', async function () {
       const keyrings = await metamaskController.keyringController.getKeyringsByType(
         'Trezor Hardware'
       )
@@ -322,7 +396,7 @@ describe('MetaMaskController', function () {
     })
 
 
-    it('should call  keyringController.addNewAccount', async function () {
+    it('should call keyringController.addNewAccount', async function () {
       assert(metamaskController.keyringController.addNewAccount.calledOnce)
     })
 
@@ -346,29 +420,19 @@ describe('MetaMaskController', function () {
   })
 
   describe('#setCustomRpc', function () {
-    const customRPC = 'https://custom.rpc/'
     let rpcTarget
 
     beforeEach(function () {
-
-      nock('https://custom.rpc')
-      .post('/')
-      .reply(200)
-
-      rpcTarget = metamaskController.setCustomRpc(customRPC)
-    })
-
-    afterEach(function () {
-      nock.cleanAll()
+      rpcTarget = metamaskController.setCustomRpc(CUSTOM_RPC_URL)
     })
 
     it('returns custom RPC that when called', async function () {
-      assert.equal(await rpcTarget, customRPC)
+      assert.equal(await rpcTarget, CUSTOM_RPC_URL)
     })
 
     it('changes the network controller rpc', function () {
       const networkControllerState = metamaskController.networkController.store.getState()
-      assert.equal(networkControllerState.provider.rpcTarget, customRPC)
+      assert.equal(networkControllerState.provider.rpcTarget, CUSTOM_RPC_URL)
     })
   })
 
@@ -473,9 +537,10 @@ describe('MetaMaskController', function () {
       getNetworkstub.returns(42)
 
       metamaskController.txController.txStateManager._saveTxList([
-        { id: 1, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {from: '0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc'} },
-        { id: 2, status: 'rejected', metamaskNetworkId: 32, txParams: {} },
-        { id: 3, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {from: '0xB09d8505E1F4EF1CeA089D47094f5DD3464083d4'} },
+        createTxMeta({ id: 1, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {from: '0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc'} }),
+        createTxMeta({ id: 1, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {from: '0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc'} }),
+        createTxMeta({ id: 2, status: 'rejected', metamaskNetworkId: 32 }),
+        createTxMeta({ id: 3, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {from: '0xB09d8505E1F4EF1CeA089D47094f5DD3464083d4'} }),
       ])
     })
 
@@ -552,14 +617,16 @@ describe('MetaMaskController', function () {
 
   })
 
-  describe('#newUnsignedMessage', function () {
+  describe('#newUnsignedMessage', () => {
 
     let msgParams, metamaskMsgs, messages, msgId
 
     const address = '0xc42edfcc21ed14dda456aa0756c153f7985d8813'
     const data = '0x43727970746f6b697474696573'
 
-    beforeEach(async function () {
+    beforeEach(async () => {
+      sandbox.stub(metamaskController, 'getBalance')
+      metamaskController.getBalance.callsFake(() => { return Promise.resolve('0x0') })
 
       await metamaskController.createNewVaultAndRestore('foobar1337', TEST_SEED_ALT)
 
@@ -568,7 +635,10 @@ describe('MetaMaskController', function () {
         'data': data,
       }
 
-      metamaskController.newUnsignedMessage(msgParams, noop)
+      const promise = metamaskController.newUnsignedMessage(msgParams)
+      // handle the promise so it doesn't throw an unhandledRejection
+      promise.then(noop).catch(noop)
+
       metamaskMsgs = metamaskController.messageManager.getUnapprovedMsgs()
       messages = metamaskController.messageManager.messages
       msgId = Object.keys(metamaskMsgs)[0]
@@ -608,13 +678,16 @@ describe('MetaMaskController', function () {
 
   describe('#newUnsignedPersonalMessage', function () {
 
-    it('errors with no from in msgParams', function () {
+    it('errors with no from in msgParams', async () => {
       const msgParams = {
         'data': data,
       }
-      metamaskController.newUnsignedPersonalMessage(msgParams, function (error) {
+      try {
+        await metamaskController.newUnsignedPersonalMessage(msgParams)
+        assert.fail('should have thrown')
+      } catch (error) {
         assert.equal(error.message, 'MetaMask Message Signature: from field is required.')
-      })
+      }
     })
 
     let msgParams, metamaskPersonalMsgs, personalMessages, msgId
@@ -623,6 +696,8 @@ describe('MetaMaskController', function () {
     const data = '0x43727970746f6b697474696573'
 
     beforeEach(async function () {
+      sandbox.stub(metamaskController, 'getBalance')
+      metamaskController.getBalance.callsFake(() => { return Promise.resolve('0x0') })
 
       await metamaskController.createNewVaultAndRestore('foobar1337', TEST_SEED_ALT)
 
@@ -631,7 +706,10 @@ describe('MetaMaskController', function () {
         'data': data,
       }
 
-      metamaskController.newUnsignedPersonalMessage(msgParams, noop)
+      const promise = metamaskController.newUnsignedPersonalMessage(msgParams)
+      // handle the promise so it doesn't throw an unhandledRejection
+      promise.then(noop).catch(noop)
+
       metamaskPersonalMsgs = metamaskController.personalMessageManager.getUnapprovedMsgs()
       personalMessages = metamaskController.personalMessageManager.messages
       msgId = Object.keys(metamaskPersonalMsgs)[0]
@@ -670,22 +748,27 @@ describe('MetaMaskController', function () {
   describe('#setupUntrustedCommunication', function () {
     let streamTest
 
-    const phishingUrl = 'decentral.market'
+    const phishingUrl = 'myethereumwalletntw.com'
 
     afterEach(function () {
       streamTest.end()
     })
 
-    it('sets up phishing stream for untrusted communication ', async function () {
+    it('sets up phishing stream for untrusted communication ', async () => {
       await metamaskController.blacklistController.updatePhishingList()
+      console.log(blacklistJSON.blacklist.includes(phishingUrl))
+
+      const { promise, resolve } = deferredPromise()
 
       streamTest = createThoughStream((chunk, enc, cb) => {
-        assert.equal(chunk.name, 'phishing')
+        if (chunk.name !== 'phishing') return cb()
         assert.equal(chunk.data.hostname, phishingUrl)
-         cb()
-        })
-      // console.log(streamTest)
-       metamaskController.setupUntrustedCommunication(streamTest, phishingUrl)
+        resolve()
+        cb()
+      })
+      metamaskController.setupUntrustedCommunication(streamTest, phishingUrl)
+
+      await promise
     })
   })
 
@@ -732,3 +815,9 @@ describe('MetaMaskController', function () {
   })
 
 })
+
+function deferredPromise () {
+  let resolve
+  const promise = new Promise(_resolve => { resolve = _resolve })
+  return { promise, resolve }
+}
diff --git a/test/unit/app/controllers/network-contoller-test.js b/test/unit/app/controllers/network-contoller-test.js
index e16fb104e..822311931 100644
--- a/test/unit/app/controllers/network-contoller-test.js
+++ b/test/unit/app/controllers/network-contoller-test.js
@@ -32,9 +32,10 @@ describe('# Network Controller', function () {
     describe('#provider', function () {
       it('provider should be updatable without reassignment', function () {
         networkController.initializeProvider(networkControllerProviderConfig)
-        const proxy = networkController._proxy
-        proxy.setTarget({ test: true, on: () => {} })
-        assert.ok(proxy.test)
+        const providerProxy = networkController.getProviderAndBlockTracker().provider
+        assert.equal(providerProxy.test, undefined)
+        providerProxy.setTarget({ test: true })
+        assert.equal(providerProxy.test, true)
       })
     })
     describe('#getNetworkState', function () {
diff --git a/test/unit/app/controllers/transactions/nonce-tracker-test.js b/test/unit/app/controllers/transactions/nonce-tracker-test.js
index 6c0ac759f..51ac390e9 100644
--- a/test/unit/app/controllers/transactions/nonce-tracker-test.js
+++ b/test/unit/app/controllers/transactions/nonce-tracker-test.js
@@ -224,14 +224,15 @@ function generateNonceTrackerWith (pending, confirmed, providerStub = '0x0') {
   providerResultStub.result = providerStub
   const provider = {
     sendAsync: (_, cb) => { cb(undefined, providerResultStub) },
-    _blockTracker: {
-      getCurrentBlock: () => '0x11b568',
-    },
+  }
+  const blockTracker = {
+    getCurrentBlock: () => '0x11b568',
+    getLatestBlock: async () => '0x11b568',
   }
   return new NonceTracker({
     provider,
+    blockTracker,
     getPendingTransactions,
     getConfirmedTransactions,
   })
 }
-
diff --git a/test/unit/app/controllers/transactions/pending-tx-test.js b/test/unit/app/controllers/transactions/pending-tx-test.js
index 8bf2da6f8..ba15f1953 100644
--- a/test/unit/app/controllers/transactions/pending-tx-test.js
+++ b/test/unit/app/controllers/transactions/pending-tx-test.js
@@ -9,6 +9,7 @@ describe('PendingTransactionTracker', function () {
   let pendingTxTracker, txMeta, txMetaNoHash, providerResultStub,
   provider, txMeta3, txList, knownErrors
   this.timeout(10000)
+
   beforeEach(function () {
     txMeta = {
       id: 1,
@@ -40,7 +41,10 @@ describe('PendingTransactionTracker', function () {
       getPendingTransactions: () => { return [] },
       getCompletedTransactions: () => { return [] },
       publishTransaction: () => {},
+      confirmTransaction: () => {},
     })
+
+    pendingTxTracker._getBlock = (blockNumber) => { return {number: blockNumber, transactions: []} }
   })
 
   describe('_checkPendingTx state management', function () {
@@ -92,58 +96,6 @@ describe('PendingTransactionTracker', function () {
     })
   })
 
-  describe('#checkForTxInBlock', function () {
-    it('should return if no pending transactions', function () {
-      // throw a type error if it trys to do anything on the block
-      // thus failing the test
-      const block = Proxy.revocable({}, {}).revoke()
-      pendingTxTracker.checkForTxInBlock(block)
-    })
-    it('should emit \'tx:failed\' if the txMeta does not have a hash', function (done) {
-      const block = Proxy.revocable({}, {}).revoke()
-      pendingTxTracker.getPendingTransactions = () => [txMetaNoHash]
-      pendingTxTracker.once('tx:failed', (txId, err) => {
-        assert(txId, txMetaNoHash.id, 'should pass txId')
-        done()
-      })
-      pendingTxTracker.checkForTxInBlock(block)
-    })
-    it('should emit \'txConfirmed\' if the tx is in the block', function (done) {
-      const block = { transactions: [txMeta]}
-      pendingTxTracker.getPendingTransactions = () => [txMeta]
-      pendingTxTracker.once('tx:confirmed', (txId) => {
-        assert(txId, txMeta.id, 'should pass txId')
-        done()
-      })
-      pendingTxTracker.once('tx:failed', (_, err) => { done(err) })
-      pendingTxTracker.checkForTxInBlock(block)
-    })
-  })
-  describe('#queryPendingTxs', function () {
-    it('should call #_checkPendingTxs if their is no oldBlock', function (done) {
-      let oldBlock
-      const newBlock = { number: '0x01' }
-      pendingTxTracker._checkPendingTxs = done
-      pendingTxTracker.queryPendingTxs({ oldBlock, newBlock })
-    })
-    it('should call #_checkPendingTxs if oldBlock and the newBlock have a diff of greater then 1', function (done) {
-      const oldBlock = { number: '0x01' }
-      const newBlock = { number: '0x03' }
-      pendingTxTracker._checkPendingTxs = done
-      pendingTxTracker.queryPendingTxs({ oldBlock, newBlock })
-    })
-    it('should not call #_checkPendingTxs if oldBlock and the newBlock have a diff of 1 or less', function (done) {
-      const oldBlock = { number: '0x1' }
-      const newBlock = { number: '0x2' }
-      pendingTxTracker._checkPendingTxs = () => {
-        const err = new Error('should not call #_checkPendingTxs if oldBlock and the newBlock have a diff of 1 or less')
-        done(err)
-      }
-      pendingTxTracker.queryPendingTxs({ oldBlock, newBlock })
-      done()
-    })
-  })
-
   describe('#_checkPendingTx', function () {
     it('should emit \'tx:failed\' if the txMeta does not have a hash', function (done) {
       pendingTxTracker.once('tx:failed', (txId, err) => {
@@ -157,16 +109,6 @@ describe('PendingTransactionTracker', function () {
       providerResultStub.eth_getTransactionByHash = null
       pendingTxTracker._checkPendingTx(txMeta)
     })
-
-    it('should emit \'txConfirmed\'', function (done) {
-      providerResultStub.eth_getTransactionByHash = {blockNumber: '0x01'}
-      pendingTxTracker.once('tx:confirmed', (txId) => {
-        assert(txId, txMeta.id, 'should pass txId')
-        done()
-      })
-      pendingTxTracker.once('tx:failed', (_, err) => { done(err) })
-      pendingTxTracker._checkPendingTx(txMeta)
-    })
   })
 
   describe('#_checkPendingTxs', function () {
@@ -180,19 +122,19 @@ describe('PendingTransactionTracker', function () {
       })
     })
 
-    it('should warp all txMeta\'s in #_checkPendingTx', function (done) {
+    it('should warp all txMeta\'s in #updatePendingTxs', function (done) {
       pendingTxTracker.getPendingTransactions = () => txList
       pendingTxTracker._checkPendingTx = (tx) => { tx.resolve(tx) }
       Promise.all(txList.map((tx) => tx.processed))
       .then((txCompletedList) => done())
       .catch(done)
 
-      pendingTxTracker._checkPendingTxs()
+      pendingTxTracker.updatePendingTxs()
     })
   })
 
   describe('#resubmitPendingTxs', function () {
-    const blockStub = { number: '0x0' }
+    const blockNumberStub = '0x0'
     beforeEach(function () {
     const txMeta2 = txMeta3 = txMeta
     txList = [txMeta, txMeta2, txMeta3].map((tx) => {
@@ -210,7 +152,7 @@ describe('PendingTransactionTracker', function () {
       Promise.all(txList.map((tx) => tx.processed))
       .then((txCompletedList) => done())
       .catch(done)
-      pendingTxTracker.resubmitPendingTxs(blockStub)
+      pendingTxTracker.resubmitPendingTxs(blockNumberStub)
     })
     it('should not emit \'tx:failed\' if the txMeta throws a known txError', function (done) {
       knownErrors = [
@@ -237,7 +179,7 @@ describe('PendingTransactionTracker', function () {
       .then((txCompletedList) => done())
       .catch(done)
 
-      pendingTxTracker.resubmitPendingTxs(blockStub)
+      pendingTxTracker.resubmitPendingTxs(blockNumberStub)
     })
     it('should emit \'tx:warning\' if it encountered a real error', function (done) {
       pendingTxTracker.once('tx:warning', (txMeta, err) => {
@@ -255,7 +197,7 @@ describe('PendingTransactionTracker', function () {
       .then((txCompletedList) => done())
       .catch(done)
 
-      pendingTxTracker.resubmitPendingTxs(blockStub)
+      pendingTxTracker.resubmitPendingTxs(blockNumberStub)
     })
   })
   describe('#_resubmitTx', function () {
diff --git a/test/unit/app/controllers/transactions/tx-controller-test.js b/test/unit/app/controllers/transactions/tx-controller-test.js
index 26dc7b656..5ac813b49 100644
--- a/test/unit/app/controllers/transactions/tx-controller-test.js
+++ b/test/unit/app/controllers/transactions/tx-controller-test.js
@@ -1,4 +1,5 @@
 const assert = require('assert')
+const EventEmitter = require('events')
 const ethUtil = require('ethereumjs-util')
 const EthTx = require('ethereumjs-tx')
 const ObservableStore = require('obs-store')
@@ -22,12 +23,14 @@ describe('Transaction Controller', function () {
     }
     provider = createTestProviderTools({ scaffold: providerResultStub }).provider
     fromAccount = getTestAccounts()[0]
-
+    const blockTrackerStub = new EventEmitter()
+    blockTrackerStub.getCurrentBlock = noop
+    blockTrackerStub.getLatestBlock = noop
     txController = new TransactionController({
       provider,
       networkStore: new ObservableStore(currentNetworkId),
       txHistoryLimit: 10,
-      blockTracker: { getCurrentBlock: noop, on: noop, once: noop },
+      blockTracker: blockTrackerStub,
       signTransaction: (ethTx) => new Promise((resolve) => {
         ethTx.sign(fromAccount.key)
         resolve()
@@ -49,9 +52,9 @@ describe('Transaction Controller', function () {
   describe('#getUnapprovedTxCount', function () {
     it('should return the number of unapproved txs', function () {
       txController.txStateManager._saveTxList([
-        { id: 1, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {} },
-        { id: 2, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {} },
-        { id: 3, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {} },
+        { id: 1, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {}, history: [] },
+        { id: 2, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {}, history: [] },
+        { id: 3, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {}, history: [] },
       ])
       const unapprovedTxCount = txController.getUnapprovedTxCount()
       assert.equal(unapprovedTxCount, 3, 'should be 3')
@@ -61,9 +64,9 @@ describe('Transaction Controller', function () {
   describe('#getPendingTxCount', function () {
     it('should return the number of pending txs', function () {
       txController.txStateManager._saveTxList([
-        { id: 1, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {} },
-        { id: 2, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {} },
-        { id: 3, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {} },
+        { id: 1, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {}, history: [] },
+        { id: 2, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {}, history: [] },
+        { id: 3, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {}, history: [] },
       ])
       const pendingTxCount = txController.getPendingTxCount()
       assert.equal(pendingTxCount, 3, 'should be 3')
@@ -79,15 +82,15 @@ describe('Transaction Controller', function () {
         'to': '0xc684832530fcbddae4b4230a47e991ddcec2831d',
       }
       txController.txStateManager._saveTxList([
-        {id: 0, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams},
-        {id: 1, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams},
-        {id: 2, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams},
-        {id: 3, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams},
-        {id: 4, status: 'rejected', metamaskNetworkId: currentNetworkId, txParams},
-        {id: 5, status: 'approved', metamaskNetworkId: currentNetworkId, txParams},
-        {id: 6, status: 'signed', metamaskNetworkId: currentNetworkId, txParams},
-        {id: 7, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams},
-        {id: 8, status: 'failed', metamaskNetworkId: currentNetworkId, txParams},
+        {id: 0, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams, history: [] },
+        {id: 1, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams, history: [] },
+        {id: 2, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams, history: [] },
+        {id: 3, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams, history: [] },
+        {id: 4, status: 'rejected', metamaskNetworkId: currentNetworkId, txParams, history: [] },
+        {id: 5, status: 'approved', metamaskNetworkId: currentNetworkId, txParams, history: [] },
+        {id: 6, status: 'signed', metamaskNetworkId: currentNetworkId, txParams, history: [] },
+        {id: 7, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams, history: [] },
+        {id: 8, status: 'failed', metamaskNetworkId: currentNetworkId, txParams, history: [] },
       ])
     })
 
@@ -201,24 +204,22 @@ describe('Transaction Controller', function () {
   })
 
   describe('#addTxGasDefaults', function () {
-    it('should add the tx defaults if their are none', function (done) {
+    it('should add the tx defaults if their are none', async () => {
       const txMeta = {
-        'txParams': {
-          'from': '0xc684832530fcbddae4b4230a47e991ddcec2831d',
-          'to': '0xc684832530fcbddae4b4230a47e991ddcec2831d',
+        txParams: {
+          from: '0xc684832530fcbddae4b4230a47e991ddcec2831d',
+          to: '0xc684832530fcbddae4b4230a47e991ddcec2831d',
         },
+        history: [],
       }
-        providerResultStub.eth_gasPrice = '4a817c800'
-        providerResultStub.eth_getBlockByNumber = { gasLimit: '47b784' }
-        providerResultStub.eth_estimateGas = '5209'
-      txController.addTxGasDefaults(txMeta)
-      .then((txMetaWithDefaults) => {
-        assert(txMetaWithDefaults.txParams.value, '0x0', 'should have added 0x0 as the value')
-        assert(txMetaWithDefaults.txParams.gasPrice, 'should have added the gas price')
-        assert(txMetaWithDefaults.txParams.gas, 'should have added the gas field')
-        done()
-      })
-      .catch(done)
+      providerResultStub.eth_gasPrice = '4a817c800'
+      providerResultStub.eth_getBlockByNumber = { gasLimit: '47b784' }
+      providerResultStub.eth_estimateGas = '5209'
+
+      const txMetaWithDefaults = await txController.addTxGasDefaults(txMeta)
+      assert(txMetaWithDefaults.txParams.value, '0x0', 'should have added 0x0 as the value')
+      assert(txMetaWithDefaults.txParams.gasPrice, 'should have added the gas price')
+      assert(txMetaWithDefaults.txParams.gas, 'should have added the gas field')
     })
   })
 
@@ -381,8 +382,9 @@ describe('Transaction Controller', function () {
     })
 
     it('should publish a tx, updates the rawTx when provided a one', async function () {
+      const rawTx = '0x477b2e6553c917af0db0388ae3da62965ff1a184558f61b749d1266b2e6d024c'
       txController.txStateManager.addTx(txMeta)
-      await txController.publishTransaction(txMeta.id)
+      await txController.publishTransaction(txMeta.id, rawTx)
       const publishedTx = txController.txStateManager.getTx(1)
       assert.equal(publishedTx.hash, hash)
       assert.equal(publishedTx.status, 'submitted')
@@ -398,7 +400,7 @@ describe('Transaction Controller', function () {
         data: '0x0',
       }
       txController.txStateManager._saveTxList([
-        { id: 1, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams },
+        { id: 1, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams, history: [] },
       ])
       txController.retryTransaction(1)
       .then((txMeta) => {
diff --git a/test/unit/config-manager-test.js b/test/unit/config-manager-test.js
index b710e2dfb..df0c549d0 100644
--- a/test/unit/config-manager-test.js
+++ b/test/unit/config-manager-test.js
@@ -1,6 +1,3 @@
-// polyfill fetch
-global.fetch = global.fetch || require('isomorphic-fetch')
-
 const assert = require('assert')
 const configManagerGen = require('../lib/mock-config-manager')
 
diff --git a/test/unit/localhostState.js b/test/unit/localhostState.js
new file mode 100644
index 000000000..f9fa157d7
--- /dev/null
+++ b/test/unit/localhostState.js
@@ -0,0 +1,21 @@
+
+/**
+ * @typedef {Object} FirstTimeState
+ * @property {Object} config Initial configuration parameters
+ * @property {Object} NetworkController Network controller state
+ */
+
+/**
+ * @type {FirstTimeState}
+ */
+const initialState = {
+  config: {},
+    NetworkController: {
+      provider: {
+        type: 'rpc',
+        rpcTarget: 'http://localhost:8545',
+      },
+    },
+}
+
+module.exports = initialState
diff --git a/ui/app/actions.js b/ui/app/actions.js
index 9edb3511a..6bcc64e17 100644
--- a/ui/app/actions.js
+++ b/ui/app/actions.js
@@ -12,6 +12,7 @@ const { fetchLocale } = require('../i18n-helper')
 const log = require('loglevel')
 const { ENVIRONMENT_TYPE_NOTIFICATION } = require('../../app/scripts/lib/enums')
 const { hasUnconfirmedTransactions } = require('./helpers/confirm-transaction/util')
+const WebcamUtils = require('../lib/webcam-utils')
 
 var actions = {
   _setBackgroundConnection: _setBackgroundConnection,
@@ -33,6 +34,8 @@ var actions = {
   ALERT_CLOSE: 'UI_ALERT_CLOSE',
   showAlert: showAlert,
   hideAlert: hideAlert,
+  QR_CODE_DETECTED: 'UI_QR_CODE_DETECTED',
+  qrCodeDetected,
   // network dropdown open
   NETWORK_DROPDOWN_OPEN: 'UI_NETWORK_DROPDOWN_OPEN',
   NETWORK_DROPDOWN_CLOSE: 'UI_NETWORK_DROPDOWN_CLOSE',
@@ -88,7 +91,7 @@ var actions = {
   connectHardware,
   checkHardwareStatus,
   forgetDevice,
-  unlockTrezorAccount,
+  unlockHardwareWalletAccount,
   NEW_ACCOUNT_SCREEN: 'NEW_ACCOUNT_SCREEN',
   navigateToNewAccountScreen,
   resetAccount,
@@ -125,7 +128,8 @@ var actions = {
   SHOW_CONF_TX_PAGE: 'SHOW_CONF_TX_PAGE',
   SHOW_CONF_MSG_PAGE: 'SHOW_CONF_MSG_PAGE',
   SET_CURRENT_FIAT: 'SET_CURRENT_FIAT',
-  setCurrentCurrency: setCurrentCurrency,
+  showQrScanner,
+  setCurrentCurrency,
   setCurrentAccountTab,
   // account detail screen
   SHOW_SEND_PAGE: 'SHOW_SEND_PAGE',
@@ -231,6 +235,8 @@ var actions = {
   UPDATE_TOKENS: 'UPDATE_TOKENS',
   setRpcTarget: setRpcTarget,
   setProviderType: setProviderType,
+  SET_HARDWARE_WALLET_DEFAULT_HD_PATH: 'SET_HARDWARE_WALLET_DEFAULT_HD_PATH',
+  setHardwareWalletDefaultHdPath,
   updateProviderType,
   // loading overlay
   SHOW_LOADING: 'SHOW_LOADING_INDICATION',
@@ -635,12 +641,12 @@ function addNewAccount () {
   }
 }
 
-function checkHardwareStatus (deviceName) {
-  log.debug(`background.checkHardwareStatus`, deviceName)
+function checkHardwareStatus (deviceName, hdPath) {
+  log.debug(`background.checkHardwareStatus`, deviceName, hdPath)
   return (dispatch, getState) => {
     dispatch(actions.showLoadingIndication())
     return new Promise((resolve, reject) => {
-      background.checkHardwareStatus(deviceName, (err, unlocked) => {
+      background.checkHardwareStatus(deviceName, hdPath, (err, unlocked) => {
         if (err) {
           log.error(err)
           dispatch(actions.displayWarning(err.message))
@@ -677,12 +683,12 @@ function forgetDevice (deviceName) {
   }
 }
 
-function connectHardware (deviceName, page) {
-  log.debug(`background.connectHardware`, deviceName, page)
+function connectHardware (deviceName, page, hdPath) {
+  log.debug(`background.connectHardware`, deviceName, page, hdPath)
   return (dispatch, getState) => {
     dispatch(actions.showLoadingIndication())
     return new Promise((resolve, reject) => {
-      background.connectHardware(deviceName, page, (err, accounts) => {
+      background.connectHardware(deviceName, page, hdPath, (err, accounts) => {
         if (err) {
           log.error(err)
           dispatch(actions.displayWarning(err.message))
@@ -698,12 +704,12 @@ function connectHardware (deviceName, page) {
   }
 }
 
-function unlockTrezorAccount (index) {
-  log.debug(`background.unlockTrezorAccount`, index)
+function unlockHardwareWalletAccount (index, deviceName, hdPath) {
+  log.debug(`background.unlockHardwareWalletAccount`, index, deviceName, hdPath)
   return (dispatch, getState) => {
     dispatch(actions.showLoadingIndication())
     return new Promise((resolve, reject) => {
-      background.unlockTrezorAccount(index, (err, accounts) => {
+      background.unlockHardwareWalletAccount(index, deviceName, hdPath, (err, accounts) => {
         if (err) {
           log.error(err)
           dispatch(actions.displayWarning(err.message))
@@ -723,6 +729,28 @@ function showInfoPage () {
   }
 }
 
+function showQrScanner (ROUTE) {
+  return (dispatch, getState) => {
+    return WebcamUtils.checkStatus()
+    .then(status => {
+      if (!status.environmentReady) {
+         // We need to switch to fullscreen mode to ask for permission
+         global.platform.openExtensionInBrowser(`${ROUTE}`, `scan=true`)
+      } else {
+        dispatch(actions.showModal({
+          name: 'QR_SCANNER',
+        }))
+      }
+    }).catch(e => {
+      dispatch(actions.showModal({
+        name: 'QR_SCANNER',
+        error: true,
+        errorType: e.type,
+      }))
+    })
+  }
+}
+
 function setCurrentCurrency (currencyCode) {
   return (dispatch) => {
     dispatch(actions.showLoadingIndication())
@@ -1809,6 +1837,17 @@ function hideAlert () {
   }
 }
 
+/**
+ * This action will receive two types of values via qrCodeData
+ * an object with the following structure {type, values}
+ * or null (used to clear the previous value)
+ */
+function qrCodeDetected (qrCodeData) {
+  return {
+    type: actions.QR_CODE_DETECTED,
+    value: qrCodeData,
+  }
+}
 
 function showLoadingIndication (message) {
   return {
@@ -1817,6 +1856,13 @@ function showLoadingIndication (message) {
   }
 }
 
+function setHardwareWalletDefaultHdPath ({ device, path }) {
+    return {
+      type: actions.SET_HARDWARE_WALLET_DEFAULT_HD_PATH,
+      value: {device, path},
+    }
+}
+
 function hideLoadingIndication () {
   return {
     type: actions.HIDE_LOADING,
diff --git a/ui/app/app.js b/ui/app/app.js
index dbb6146d1..4fcf092ca 100644
--- a/ui/app/app.js
+++ b/ui/app/app.js
@@ -39,8 +39,7 @@ const Modal = require('./components/modals/index').Modal
 // Global Alert
 const Alert = require('./components/alert')
 
-const AppHeader = require('./components/app-header')
-
+import AppHeader from './components/app-header'
 import UnlockPage from './components/pages/unlock-page'
 
 // Routes
diff --git a/ui/app/components/account-menu/index.js b/ui/app/components/account-menu/index.js
index 9c063d31e..bcada41e3 100644
--- a/ui/app/components/account-menu/index.js
+++ b/ui/app/components/account-menu/index.js
@@ -229,6 +229,7 @@ AccountMenu.prototype.renderKeyringType = function (keyring) {
     let label
     switch (type) {
       case 'Trezor Hardware':
+      case 'Ledger Hardware':
         label = this.context.t('hardware')
       break
       case 'Simple Key Pair':
diff --git a/ui/app/components/app-header/app-header.component.js b/ui/app/components/app-header/app-header.component.js
index 07ca6cf84..b8b002dcc 100644
--- a/ui/app/components/app-header/app-header.component.js
+++ b/ui/app/components/app-header/app-header.component.js
@@ -1,4 +1,4 @@
-import React, { Component } from 'react'
+import React, { PureComponent } from 'react'
 import PropTypes from 'prop-types'
 import classnames from 'classnames'
 import { matchPath } from 'react-router-dom'
@@ -11,7 +11,7 @@ const { DEFAULT_ROUTE, INITIALIZE_ROUTE, CONFIRM_TRANSACTION_ROUTE } = require('
 const Identicon = require('../identicon')
 const NetworkIndicator = require('../network')
 
-class AppHeader extends Component {
+export default class AppHeader extends PureComponent {
   static propTypes = {
     history: PropTypes.object,
     location: PropTypes.object,
@@ -107,20 +107,19 @@ class AppHeader extends Component {
             onClick={() => history.push(DEFAULT_ROUTE)}
           >
             <img
-              className="app-header__metafox"
-              src="/images/metamask-fox.svg"
+              className="app-header__metafox-logo app-header__metafox-logo--horizontal"
+              src="/images/logo/metamask-logo-horizontal-beta.svg"
+              height={30}
+            />
+            <img
+              className="app-header__metafox-logo app-header__metafox-logo--icon"
+              src="/images/logo/metamask-fox.svg"
               height={42}
               width={42}
             />
-            <div className="flex-row">
-              <h1>{ this.context.t('appName') }</h1>
-              <div className="app-header__beta-label">
-                { this.context.t('beta') }
-              </div>
-            </div>
           </div>
           <div className="app-header__account-menu-container">
-            <div className="network-component-wrapper">
+            <div className="app-header__network-component-wrapper">
               <NetworkIndicator
                 network={network}
                 provider={provider}
@@ -135,5 +134,3 @@ class AppHeader extends Component {
     )
   }
 }
-
-export default AppHeader
diff --git a/ui/app/components/app-header/index.js b/ui/app/components/app-header/index.js
index daa31f621..6de2f9c78 100644
--- a/ui/app/components/app-header/index.js
+++ b/ui/app/components/app-header/index.js
@@ -1,2 +1 @@
-import AppHeader from './app-header.container'
-module.exports = AppHeader
+export { default } from './app-header.container'
diff --git a/ui/app/css/itcss/components/header.scss b/ui/app/components/app-header/index.scss
index 3ccfd5c15..325844af5 100644
--- a/ui/app/css/itcss/components/header.scss
+++ b/ui/app/components/app-header/index.scss
@@ -30,21 +30,19 @@
     }
   }
 
-  &__metafox {
+  &__metafox-logo {
     cursor: pointer;
-  }
 
-  &__beta-label {
-    font-family: Roboto;
-    text-transform: uppercase;
-    font-weight: 500;
-    font-size: .8rem;
-    color: $buttercup;
-    margin-left: 5px;
-    line-height: initial;
+    &--icon {
+      @media screen and (min-width: $break-large) {
+        display: none;
+      }
+    }
 
-    @media screen and (max-width: 575px) {
-      display: none;
+    &--horizontal {
+      @media screen and (max-width: $break-small) {
+        display: none;
+      }
     }
   }
 
@@ -83,31 +81,10 @@
     flex-flow: row nowrap;
     align-items: center;
   }
-}
-
-.app-header h1 {
-  font-family: Roboto;
-  text-transform: uppercase;
-  font-weight: 400;
-  font-size: 1.1rem;
-  position: relative;
-  padding-left: 15px;
-  color: #5b5d67;
 
-  @media screen and (max-width: 575px) {
-    display: none;
+  &__network-component-wrapper {
+    display: flex;
+    flex-direction: row;
+    align-items: center;
   }
 }
-
-h2.page-subtitle {
-  text-transform: uppercase;
-  color: #aeaeae;
-  font-size: 1em;
-  margin: 12px;
-}
-
-.network-component-wrapper {
-  display: flex;
-  flex-direction: row;
-  align-items: center;
-}
diff --git a/ui/app/components/ens-input.js b/ui/app/components/ens-input.js
index b9f99b3d1..f538fd555 100644
--- a/ui/app/components/ens-input.js
+++ b/ui/app/components/ens-input.js
@@ -27,6 +27,7 @@ function EnsInput () {
 }
 
 EnsInput.prototype.onChange = function (recipient) {
+
   const network = this.props.network
   const networkHasEnsSupport = getNetworkEnsSupport(network)
 
@@ -54,6 +55,7 @@ EnsInput.prototype.render = function () {
   const opts = extend(props, {
     list: 'addresses',
     onChange: this.onChange.bind(this),
+    qrScanner: true,
   })
   return h('div', {
     style: { width: '100%', position: 'relative' },
diff --git a/ui/app/components/index.scss b/ui/app/components/index.scss
index b3e14ce23..35d38e2a3 100644
--- a/ui/app/components/index.scss
+++ b/ui/app/components/index.scss
@@ -19,3 +19,5 @@
 @import './sender-to-recipient/index';
 
 @import './tabs/index';
+
+@import './app-header/index';
diff --git a/ui/app/components/modals/account-details-modal.js b/ui/app/components/modals/account-details-modal.js
index 049c75eee..38f70c33c 100644
--- a/ui/app/components/modals/account-details-modal.js
+++ b/ui/app/components/modals/account-details-modal.js
@@ -60,7 +60,8 @@ AccountDetailsModal.prototype.render = function () {
   })
 
   let exportPrivateKeyFeatureEnabled = true
-  if (keyring.type === 'Trezor Hardware') {
+  // This feature is disabled for hardware wallets
+  if (keyring.type.search('Hardware') !== -1) {
     exportPrivateKeyFeatureEnabled = false
   }
 
diff --git a/ui/app/components/modals/index.scss b/ui/app/components/modals/index.scss
index e198cca44..0acccf172 100644
--- a/ui/app/components/modals/index.scss
+++ b/ui/app/components/modals/index.scss
@@ -1,5 +1,7 @@
 @import './customize-gas/index';
 
+@import './qr-scanner/index';
+
 .modal-container {
   width: 100%;
   height: 100%;
diff --git a/ui/app/components/modals/modal.js b/ui/app/components/modals/modal.js
index f59825ed1..5dda50e52 100644
--- a/ui/app/components/modals/modal.js
+++ b/ui/app/components/modals/modal.js
@@ -21,6 +21,7 @@ const CustomizeGasModal = require('../customize-gas-modal')
 const NotifcationModal = require('./notification-modal')
 const ConfirmResetAccount = require('./confirm-reset-account')
 const ConfirmRemoveAccount = require('./confirm-remove-account')
+const QRScanner = require('./qr-scanner')
 const TransactionConfirmed = require('./transaction-confirmed')
 const WelcomeBeta = require('./welcome-beta')
 const Notification = require('./notification')
@@ -346,6 +347,18 @@ const MODALS = {
       borderRadius: '8px',
     },
   },
+  QR_SCANNER: {
+    contents: h(QRScanner),
+    mobileModalStyle: {
+      ...modalContainerMobileStyle,
+    },
+    laptopModalStyle: {
+      ...modalContainerLaptopStyle,
+    },
+    contentStyle: {
+      borderRadius: '8px',
+    },
+  },
 
   DEFAULT: {
     contents: [],
diff --git a/ui/app/components/modals/qr-scanner/index.js b/ui/app/components/modals/qr-scanner/index.js
new file mode 100644
index 000000000..470dee1f4
--- /dev/null
+++ b/ui/app/components/modals/qr-scanner/index.js
@@ -0,0 +1,2 @@
+import QrScanner from './qr-scanner.container'
+module.exports = QrScanner
diff --git a/ui/app/components/modals/qr-scanner/index.scss b/ui/app/components/modals/qr-scanner/index.scss
new file mode 100644
index 000000000..6fa81d51f
--- /dev/null
+++ b/ui/app/components/modals/qr-scanner/index.scss
@@ -0,0 +1,83 @@
+.qr-scanner {
+  width: 100%;
+  height: 100%;
+  background-color: #fff;
+  display: flex;
+  flex-flow: column;
+  border-radius: 8px;
+
+  &__title {
+    font-size: 1.5rem;
+    font-weight: 500;
+    padding: 16px 0;
+    text-align: center;
+  }
+
+  &__content {
+    padding-left: 20px;
+    padding-right: 20px;
+
+    &__video-wrapper {
+      overflow: hidden;
+      width: 100%;
+      height: 275px;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+
+      video {
+        transform: scaleX(-1);
+        width: auto;
+        height: 275px;
+      }
+    }
+  }
+
+  &__status {
+    text-align: center;
+    font-size: 14px;
+    padding: 15px;
+  }
+
+  &__image {
+    font-size: 1.5rem;
+    font-weight: 500;
+    padding: 16px 0 0;
+    text-align: center;
+  }
+
+  &__error {
+    text-align: center;
+    font-size: 16px;
+    padding: 15px;
+  }
+
+  &__footer {
+    padding: 20px;
+    flex-direction: row;
+    display: flex;
+
+    button {
+      margin-right: 15px;
+    }
+
+    button:last-of-type {
+      margin-right: 0;
+      background-color: #009eec;
+      border: none;
+      color: #fff;
+    }
+  }
+
+  &__close::after {
+    content: '\00D7';
+    font-size: 35px;
+    color: #9b9b9b;
+    position: absolute;
+    top: 4px;
+    right: 20px;
+    cursor: pointer;
+    font-weight: 300;
+  }
+}
+
diff --git a/ui/app/components/modals/qr-scanner/qr-scanner.component.js b/ui/app/components/modals/qr-scanner/qr-scanner.component.js
new file mode 100644
index 000000000..cb8d07d83
--- /dev/null
+++ b/ui/app/components/modals/qr-scanner/qr-scanner.component.js
@@ -0,0 +1,216 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+import { BrowserQRCodeReader } from '@zxing/library'
+import adapter from 'webrtc-adapter' // eslint-disable-line import/no-nodejs-modules, no-unused-vars
+import Spinner from '../../spinner'
+import WebcamUtils from '../../../../lib/webcam-utils'
+import PageContainerFooter from '../../page-container/page-container-footer/page-container-footer.component'
+
+export default class QrScanner extends Component {
+  static propTypes = {
+    hideModal: PropTypes.func.isRequired,
+    qrCodeDetected: PropTypes.func,
+    scanQrCode: PropTypes.func,
+    error: PropTypes.bool,
+    errorType: PropTypes.string,
+  }
+
+  static contextTypes = {
+    t: PropTypes.func,
+  }
+
+  constructor (props, context) {
+    super(props)
+
+    this.state = {
+      ready: false,
+      msg: context.t('accessingYourCamera'),
+    }
+    this.codeReader = null
+    this.permissionChecker = null
+    this.needsToReinit = false
+
+    // Clear pre-existing qr code data before scanning
+    this.props.qrCodeDetected(null)
+  }
+
+  componentDidMount () {
+    this.initCamera()
+  }
+
+  async checkPermisisions () {
+    const { permissions } = await WebcamUtils.checkStatus()
+    if (permissions) {
+      clearTimeout(this.permissionChecker)
+      // Let the video stream load first...
+      setTimeout(_ => {
+        this.setState({
+          ready: true,
+          msg: this.context.t('scanInstructions'),
+        })
+        if (this.needsToReinit) {
+          this.initCamera()
+          this.needsToReinit = false
+        }
+      }, 2000)
+    } else {
+      // Keep checking for permissions
+      this.permissionChecker = setTimeout(_ => {
+        this.checkPermisisions()
+      }, 1000)
+    }
+  }
+
+  componentWillUnmount () {
+    clearTimeout(this.permissionChecker)
+    if (this.codeReader) {
+      this.codeReader.reset()
+    }
+  }
+
+  initCamera () {
+    this.codeReader = new BrowserQRCodeReader()
+    this.codeReader.getVideoInputDevices()
+      .then(videoInputDevices => {
+        clearTimeout(this.permissionChecker)
+        this.checkPermisisions()
+        this.codeReader.decodeFromInputVideoDevice(undefined, 'video')
+        .then(content => {
+          const result = this.parseContent(content.text)
+          if (result.type !== 'unknown') {
+            this.props.qrCodeDetected(result)
+            this.stopAndClose()
+          } else {
+            this.setState({msg: this.context.t('unknownQrCode')})
+          }
+        })
+        .catch(err => {
+          if (err && err.name === 'NotAllowedError') {
+            this.setState({msg: this.context.t('youNeedToAllowCameraAccess')})
+            clearTimeout(this.permissionChecker)
+            this.needsToReinit = true
+            this.checkPermisisions()
+          }
+        })
+      }).catch(err => {
+        console.error('[QR-SCANNER]: getVideoInputDevices threw an exception: ', err)
+      })
+  }
+
+  parseContent (content) {
+    let type = 'unknown'
+    let values = {}
+
+    // Here we could add more cases
+    // To parse other type of links
+    // For ex. EIP-681 (https://eips.ethereum.org/EIPS/eip-681)
+
+
+    // Ethereum address links - fox ex. ethereum:0x.....1111
+    if (content.split('ethereum:').length > 1) {
+
+      type = 'address'
+      values = {'address': content.split('ethereum:')[1] }
+
+    // Regular ethereum addresses - fox ex. 0x.....1111
+    } else if (content.substring(0, 2).toLowerCase() === '0x') {
+
+      type = 'address'
+      values = {'address': content }
+
+    }
+    return {type, values}
+  }
+
+
+  stopAndClose = () => {
+    if (this.codeReader) {
+      this.codeReader.reset()
+    }
+    this.setState({ ready: false })
+    this.props.hideModal()
+  }
+
+  tryAgain = () => {
+    // close the modal
+    this.stopAndClose()
+    // wait for the animation and try again
+    setTimeout(_ => {
+      this.props.scanQrCode()
+    }, 1000)
+  }
+
+  renderVideo () {
+    return (
+      <div className={'qr-scanner__content__video-wrapper'}>
+        <video
+          id="video"
+          style={{
+            display: this.state.ready ? 'block' : 'none',
+          }}
+        />
+        { !this.state.ready ? <Spinner color={'#F7C06C'} /> : null}
+      </div>
+    )
+  }
+
+  renderErrorModal () {
+    let title, msg
+
+    if (this.props.error) {
+      if (this.props.errorType === 'NO_WEBCAM_FOUND') {
+        title = this.context.t('noWebcamFoundTitle')
+        msg = this.context.t('noWebcamFound')
+      } else {
+        title = this.context.t('unknownCameraErrorTitle')
+        msg = this.context.t('unknownCameraError')
+      }
+    }
+
+    return (
+      <div className="qr-scanner">
+        <div className="qr-scanner__close" onClick={this.stopAndClose}></div>
+
+        <div className="qr-scanner__image">
+          <img src={'images/webcam.svg'} width={70} height={70} />
+        </div>
+        <div className="qr-scanner__title">
+          { title }
+        </div>
+        <div className={'qr-scanner__error'}>
+          {msg}
+        </div>
+        <PageContainerFooter
+          onCancel={this.stopAndClose}
+          onSubmit={this.tryAgain}
+          cancelText={this.context.t('cancel')}
+          submitText={this.context.t('tryAgain')}
+          submitButtonType="confirm"
+        />
+      </div>
+    )
+  }
+
+  render () {
+    const { t } = this.context
+
+    if (this.props.error) {
+      return this.renderErrorModal()
+    }
+
+    return (
+      <div className="qr-scanner">
+        <div className="qr-scanner__close" onClick={this.stopAndClose}></div>
+        <div className="qr-scanner__title">
+          { `${t('scanQrCode')}` }
+        </div>
+        <div className="qr-scanner__content">
+          { this.renderVideo() }
+        </div>
+        <div className={'qr-scanner__status'}>
+          {this.state.msg}
+        </div>
+      </div>
+    )
+  }
+}
diff --git a/ui/app/components/modals/qr-scanner/qr-scanner.container.js b/ui/app/components/modals/qr-scanner/qr-scanner.container.js
new file mode 100644
index 000000000..d0a35e03b
--- /dev/null
+++ b/ui/app/components/modals/qr-scanner/qr-scanner.container.js
@@ -0,0 +1,24 @@
+import { connect } from 'react-redux'
+import QrScanner from './qr-scanner.component'
+
+const { hideModal, qrCodeDetected, showQrScanner } = require('../../../actions')
+import {
+  SEND_ROUTE,
+} from '../../../routes'
+
+const mapStateToProps = state => {
+  return {
+    error: state.appState.modal.modalState.props.error,
+    errorType: state.appState.modal.modalState.props.errorType,
+  }
+}
+
+const mapDispatchToProps = dispatch => {
+  return {
+    hideModal: () => dispatch(hideModal()),
+    qrCodeDetected: (data) => dispatch(qrCodeDetected(data)),
+    scanQrCode: () => dispatch(showQrScanner(SEND_ROUTE)),
+  }
+}
+
+export default connect(mapStateToProps, mapDispatchToProps)(QrScanner)
diff --git a/ui/app/components/pages/create-account/connect-hardware/account-list.js b/ui/app/components/pages/create-account/connect-hardware/account-list.js
index c722d1f55..488a189ea 100644
--- a/ui/app/components/pages/create-account/connect-hardware/account-list.js
+++ b/ui/app/components/pages/create-account/connect-hardware/account-list.js
@@ -2,16 +2,75 @@ const { Component } = require('react')
 const PropTypes = require('prop-types')
 const h = require('react-hyperscript')
 const genAccountLink = require('../../../../../lib/account-link.js')
+const Select = require('react-select').default
 
 class AccountList extends Component {
     constructor (props, context) {
         super(props)
     }
 
+    getHdPaths () {
+      return [
+        {
+          label: `Ledger Live`,
+          value: `m/44'/60'/0'/0/0`,
+        },
+        {
+          label: `Legacy (MEW / MyCrypto)`,
+          value: `m/44'/60'/0'`,
+        },
+      ]
+    }
+
+    goToNextPage = () => {
+      // If we have < 5 accounts, it's restricted by BIP-44
+      if (this.props.accounts.length === 5) {
+        this.props.getPage(this.props.device, 1, this.props.selectedPath)
+      } else {
+        this.props.onAccountRestriction()
+      }
+    }
+
+    goToPreviousPage = () => {
+      this.props.getPage(this.props.device, -1, this.props.selectedPath)
+    }
+
+    renderHdPathSelector () {
+      const { onPathChange, selectedPath } = this.props
+
+      const options = this.getHdPaths()
+      return h('div', [
+        h('h3.hw-connect__hdPath__title', {}, this.context.t('selectHdPath')),
+        h('p.hw-connect__msg', {}, this.context.t('selectPathHelp')),
+        h('div.hw-connect__hdPath', [
+          h(Select, {
+            className: 'hw-connect__hdPath__select',
+            name: 'hd-path-select',
+            clearable: false,
+            value: selectedPath,
+            options,
+            onChange: (opt) => {
+              onPathChange(opt.value)
+            },
+          }),
+        ]),
+      ])
+    }
+
+    capitalizeDevice (device) {
+      return device.slice(0, 1).toUpperCase() + device.slice(1)
+    }
+
     renderHeader () {
+      const { device } = this.props
       return (
         h('div.hw-connect', [
-          h('h3.hw-connect__title', {}, this.context.t('selectAnAccount')),
+
+          h('h3.hw-connect__unlock-title', {}, `${this.context.t('unlock')} ${this.capitalizeDevice(device)}`),
+
+          device.toLowerCase() === 'ledger' ? this.renderHdPathSelector() : null,
+
+          h('h3.hw-connect__hdPath__title', {}, this.context.t('selectAnAccount')),
           h('p.hw-connect__msg', {}, this.context.t('selectAnAccountHelp')),
         ])
       )
@@ -61,7 +120,7 @@ class AccountList extends Component {
       h(
         'button.hw-list-pagination__button',
         {
-          onClick: () => this.props.getPage(-1),
+          onClick: this.goToPreviousPage,
         },
         `< ${this.context.t('prev')}`
       ),
@@ -69,7 +128,7 @@ class AccountList extends Component {
       h(
         'button.hw-list-pagination__button',
         {
-          onClick: () => this.props.getPage(1),
+          onClick: this.goToNextPage,
         },
         `${this.context.t('next')} >`
       ),
@@ -95,7 +154,7 @@ class AccountList extends Component {
       h(
         `button.btn-primary.btn--large.new-account-connect-form__button.unlock ${disabled ? '.btn-primary--disabled' : ''}`,
         {
-          onClick: this.props.onUnlockAccount.bind(this),
+          onClick: this.props.onUnlockAccount.bind(this, this.props.device),
           ...buttonProps,
         },
         [this.context.t('unlock')]
@@ -106,7 +165,7 @@ class AccountList extends Component {
   renderForgetDevice () {
     return h('div.hw-forget-device-container', {}, [
       h('a', {
-        onClick: this.props.onForgetDevice.bind(this),
+        onClick: this.props.onForgetDevice.bind(this, this.props.device),
       }, this.context.t('forgetDevice')),
     ])
   }
@@ -125,6 +184,9 @@ class AccountList extends Component {
 
 
 AccountList.propTypes = {
+    onPathChange: PropTypes.func.isRequired,
+    selectedPath: PropTypes.string.isRequired,
+    device: PropTypes.string.isRequired,
     accounts: PropTypes.array.isRequired,
     onAccountChange: PropTypes.func.isRequired,
     onForgetDevice: PropTypes.func.isRequired,
@@ -134,6 +196,7 @@ AccountList.propTypes = {
     history: PropTypes.object,
     onUnlockAccount: PropTypes.func,
     onCancel: PropTypes.func,
+    onAccountRestriction: PropTypes.func,
 }
 
 AccountList.contextTypes = {
diff --git a/ui/app/components/pages/create-account/connect-hardware/connect-screen.js b/ui/app/components/pages/create-account/connect-hardware/connect-screen.js
index cb2b86595..b3dfa4ee2 100644
--- a/ui/app/components/pages/create-account/connect-hardware/connect-screen.js
+++ b/ui/app/components/pages/create-account/connect-hardware/connect-screen.js
@@ -5,6 +5,52 @@ const h = require('react-hyperscript')
 class ConnectScreen extends Component {
     constructor (props, context) {
         super(props)
+        this.state = {
+          selectedDevice: null,
+        }
+    }
+
+    connect = () => {
+      if (this.state.selectedDevice) {
+        this.props.connectToHardwareWallet(this.state.selectedDevice)
+      }
+      return null
+    }
+
+    renderConnectToTrezorButton () {
+        return h(
+            `button.hw-connect__btn${this.state.selectedDevice === 'trezor' ? '.selected' : ''}`,
+            { onClick: _ => this.setState({selectedDevice: 'trezor'}) },
+            h('img.hw-connect__btn__img', {
+              src: 'images/trezor-logo.svg',
+            })
+        )
+    }
+
+    renderConnectToLedgerButton () {
+        return h(
+          `button.hw-connect__btn${this.state.selectedDevice === 'ledger' ? '.selected' : ''}`,
+          { onClick: _ => this.setState({selectedDevice: 'ledger'}) },
+            h('img.hw-connect__btn__img', {
+              src: 'images/ledger-logo.svg',
+            })
+        )
+    }
+
+    renderButtons () {
+      return (
+        h('div', {}, [
+          h('div.hw-connect__btn-wrapper', {}, [
+            this.renderConnectToLedgerButton(),
+            this.renderConnectToTrezorButton(),
+          ]),
+          h(
+            `button.hw-connect__connect-btn${!this.state.selectedDevice ? '.disabled' : ''}`,
+            { onClick: this.connect },
+            this.context.t('connect')
+          ),
+        ])
+      )
     }
 
     renderUnsupportedBrowser () {
@@ -12,7 +58,7 @@ class ConnectScreen extends Component {
             h('div.new-account-connect-form.unsupported-browser', {}, [
                 h('div.hw-connect', [
                     h('h3.hw-connect__title', {}, this.context.t('browserNotSupported')),
-                    h('p.hw-connect__msg', {}, this.context.t('chromeRequiredForTrezor')),
+                    h('p.hw-connect__msg', {}, this.context.t('chromeRequiredForHardwareWallets')),
                 ]),
                 h(
                     'button.btn-primary.btn--large',
@@ -30,29 +76,31 @@ class ConnectScreen extends Component {
     renderHeader () {
         return (
             h('div.hw-connect__header', {}, [
-                h('h3.hw-connect__header__title', {}, this.context.t(`hardwareSupport`)),
-                h('p.hw-connect__header__msg', {}, this.context.t(`hardwareSupportMsg`)),
+                h('h3.hw-connect__header__title', {}, this.context.t(`hardwareWallets`)),
+                h('p.hw-connect__header__msg', {}, this.context.t(`hardwareWalletsMsg`)),
             ])
         )
     }
 
+    getAffiliateLinks () {
+      const links = {
+        trezor: `<a class='hw-connect__get-hw__link' href='https://shop.trezor.io/?a=metamask' target='_blank'>Trezor</a>`,
+        ledger: `<a class='hw-connect__get-hw__link' href='https://www.ledger.com/products/ledger-nano-s?r=17c4991a03fa&tracker=MY_TRACKER' target='_blank'>Ledger</a>`,
+      }
+
+      const text = this.context.t('orderOneHere')
+      const response = text.replace('Trezor', links.trezor).replace('Ledger', links.ledger)
+
+      return h('div.hw-connect__get-hw__msg', { dangerouslySetInnerHTML: {__html: response }})
+    }
+
     renderTrezorAffiliateLink () {
-        return h('div.hw-connect__get-trezor', {}, [
-            h('p.hw-connect__get-trezor__msg', {}, this.context.t(`dontHaveATrezorWallet`)),
-            h('a.hw-connect__get-trezor__link', {
-              href: 'https://shop.trezor.io/?a=metamask',
-              target: '_blank',
-            }, this.context.t('orderOneHere')),
+        return h('div.hw-connect__get-hw', {}, [
+            h('p.hw-connect__get-hw__msg', {}, this.context.t(`dontHaveAHardwareWallet`)),
+            this.getAffiliateLinks(),
           ])
     }
 
-    renderConnectToTrezorButton () {
-        return h(
-            'button.btn-primary.btn--large',
-            { onClick: this.props.connectToTrezor.bind(this) },
-            this.props.btnText
-        )
-    }
 
     scrollToTutorial = (e) => {
       if (this.referenceNode) this.referenceNode.scrollIntoView({behavior: 'smooth'})
@@ -102,7 +150,7 @@ class ConnectScreen extends Component {
         return (
             h('div.hw-connect__footer', {}, [
                 h('h3.hw-connect__footer__title', {}, this.context.t(`readyToConnect`)),
-                this.renderConnectToTrezorButton(),
+                this.renderButtons(),
                 h('p.hw-connect__footer__msg', {}, [
                     this.context.t(`havingTroubleConnecting`),
                     h('a.hw-connect__footer__link', {
@@ -118,8 +166,8 @@ class ConnectScreen extends Component {
         return (
             h('div.new-account-connect-form', {}, [
                 this.renderHeader(),
+                this.renderButtons(),
                 this.renderTrezorAffiliateLink(),
-                this.renderConnectToTrezorButton(),
                 this.renderLearnMore(),
                 this.renderTutorialSteps(),
                 this.renderFooter(),
@@ -136,8 +184,7 @@ class ConnectScreen extends Component {
 }
 
 ConnectScreen.propTypes = {
-    connectToTrezor: PropTypes.func.isRequired,
-    btnText: PropTypes.string.isRequired,
+    connectToHardwareWallet: PropTypes.func.isRequired,
     browserSupported: PropTypes.bool.isRequired,
 }
 
diff --git a/ui/app/components/pages/create-account/connect-hardware/index.js b/ui/app/components/pages/create-account/connect-hardware/index.js
index 6ad44e540..4fe25f629 100644
--- a/ui/app/components/pages/create-account/connect-hardware/index.js
+++ b/ui/app/components/pages/create-account/connect-hardware/index.js
@@ -7,17 +7,19 @@ const ConnectScreen = require('./connect-screen')
 const AccountList = require('./account-list')
 const { DEFAULT_ROUTE } = require('../../../../routes')
 const { formatBalance } = require('../../../../util')
+const { getPlatform } = require('../../../../../../app/scripts/lib/util')
+const { PLATFORM_FIREFOX } = require('../../../../../../app/scripts/lib/enums')
 
 class ConnectHardwareForm extends Component {
   constructor (props, context) {
     super(props)
     this.state = {
       error: null,
-      btnText: context.t('connectToTrezor'),
       selectedAccount: null,
       accounts: [],
       browserSupported: true,
       unlocked: false,
+      device: null,
     }
   }
 
@@ -38,25 +40,43 @@ class ConnectHardwareForm extends Component {
   }
 
   async checkIfUnlocked () {
-    const unlocked = await this.props.checkHardwareStatus('trezor')
-    if (unlocked) {
-      this.setState({unlocked: true})
-      this.getPage(0)
-    }
+    ['trezor', 'ledger'].forEach(async device => {
+      const unlocked = await this.props.checkHardwareStatus(device, this.props.defaultHdPaths[device])
+      if (unlocked) {
+        this.setState({unlocked: true})
+        this.getPage(device, 0, this.props.defaultHdPaths[device])
+      }
+    })
   }
 
-  connectToTrezor = () => {
+  connectToHardwareWallet = (device) => {
+    // Ledger hardware wallets are not supported on firefox
+    if (getPlatform() === PLATFORM_FIREFOX && device === 'ledger') {
+      this.setState({ browserSupported: false, error: null})
+      return null
+    }
+
     if (this.state.accounts.length) {
       return null
     }
-    this.setState({ btnText: this.context.t('connecting')})
-    this.getPage(0)
+
+    // Default values
+    this.getPage(device, 0, this.props.defaultHdPaths[device])
+  }
+
+  onPathChange = (path) => {
+    this.props.setHardwareWalletDefaultHdPath({device: this.state.device, path})
+    this.getPage(this.state.device, 0, path)
   }
 
   onAccountChange = (account) => {
     this.setState({selectedAccount: account.toString(), error: null})
   }
 
+  onAccountRestriction = () => {
+    this.setState({error: this.context.t('ledgerAccountRestriction') })
+  }
+
   showTemporaryAlert () {
     this.props.showAlert(this.context.t('hardwareWalletConnected'))
     // Autohide the alert after 5 seconds
@@ -65,9 +85,9 @@ class ConnectHardwareForm extends Component {
     }, 5000)
   }
 
-  getPage = (page) => {
+  getPage = (device, page, hdPath) => {
     this.props
-      .connectHardware('trezor', page)
+      .connectHardware(device, page, hdPath)
       .then(accounts => {
         if (accounts.length) {
 
@@ -77,7 +97,7 @@ class ConnectHardwareForm extends Component {
             this.showTemporaryAlert()
           }
 
-          const newState = { unlocked: true, error: null }
+          const newState = { unlocked: true, device, error: null }
           // Default to the first account
           if (this.state.selectedAccount === null) {
             accounts.forEach((a, i) => {
@@ -104,20 +124,18 @@ class ConnectHardwareForm extends Component {
       })
       .catch(e => {
         if (e === 'Window blocked') {
-          this.setState({ browserSupported: false })
-        } else {
+          this.setState({ browserSupported: false, error: null})
+        } else if (e !== 'Window closed' && e !== 'Popup closed') {
           this.setState({ error: e.toString() })
         }
-        this.setState({ btnText: this.context.t('connectToTrezor') })
       })
   }
 
-  onForgetDevice = () => {
-    this.props.forgetDevice('trezor')
+  onForgetDevice = (device) => {
+    this.props.forgetDevice(device)
     .then(_ => {
       this.setState({
         error: null,
-        btnText: this.context.t('connectToTrezor'),
         selectedAccount: null,
         accounts: [],
         unlocked: false,
@@ -127,13 +145,13 @@ class ConnectHardwareForm extends Component {
     })
   }
 
-  onUnlockAccount = () => {
+  onUnlockAccount = (device) => {
 
     if (this.state.selectedAccount === null) {
       this.setState({ error: this.context.t('accountSelectionRequired') })
     }
 
-    this.props.unlockTrezorAccount(this.state.selectedAccount)
+    this.props.unlockHardwareWalletAccount(this.state.selectedAccount, device)
     .then(_ => {
       this.props.history.push(DEFAULT_ROUTE)
     }).catch(e => {
@@ -154,13 +172,15 @@ class ConnectHardwareForm extends Component {
   renderContent () {
     if (!this.state.accounts.length) {
       return h(ConnectScreen, {
-        connectToTrezor: this.connectToTrezor,
-        btnText: this.state.btnText,
+        connectToHardwareWallet: this.connectToHardwareWallet,
         browserSupported: this.state.browserSupported,
       })
     }
 
     return h(AccountList, {
+      onPathChange: this.onPathChange,
+      selectedPath: this.props.defaultHdPaths[this.state.device],
+      device: this.state.device,
       accounts: this.state.accounts,
       selectedAccount: this.state.selectedAccount,
       onAccountChange: this.onAccountChange,
@@ -170,6 +190,7 @@ class ConnectHardwareForm extends Component {
       onUnlockAccount: this.onUnlockAccount,
       onForgetDevice: this.onForgetDevice,
       onCancel: this.onCancel,
+      onAccountRestriction: this.onAccountRestriction,
     })
   }
 
@@ -190,13 +211,15 @@ ConnectHardwareForm.propTypes = {
   forgetDevice: PropTypes.func,
   showAlert: PropTypes.func,
   hideAlert: PropTypes.func,
-  unlockTrezorAccount: PropTypes.func,
+  unlockHardwareWalletAccount: PropTypes.func,
+  setHardwareWalletDefaultHdPath: PropTypes.func,
   numberOfExistingAccounts: PropTypes.number,
   history: PropTypes.object,
   t: PropTypes.func,
   network: PropTypes.string,
   accounts: PropTypes.object,
   address: PropTypes.string,
+  defaultHdPaths: PropTypes.object,
 }
 
 const mapStateToProps = state => {
@@ -204,28 +227,35 @@ const mapStateToProps = state => {
     metamask: { network, selectedAddress, identities = {}, accounts = [] },
   } = state
   const numberOfExistingAccounts = Object.keys(identities).length
+  const {
+    appState: { defaultHdPaths },
+  } = state
 
   return {
     network,
     accounts,
     address: selectedAddress,
     numberOfExistingAccounts,
+    defaultHdPaths,
   }
 }
 
 const mapDispatchToProps = dispatch => {
   return {
-    connectHardware: (deviceName, page) => {
-      return dispatch(actions.connectHardware(deviceName, page))
+    setHardwareWalletDefaultHdPath: ({device, path}) => {
+      return dispatch(actions.setHardwareWalletDefaultHdPath({device, path}))
+    },
+    connectHardware: (deviceName, page, hdPath) => {
+      return dispatch(actions.connectHardware(deviceName, page, hdPath))
     },
-    checkHardwareStatus: (deviceName) => {
-      return dispatch(actions.checkHardwareStatus(deviceName))
+    checkHardwareStatus: (deviceName, hdPath) => {
+      return dispatch(actions.checkHardwareStatus(deviceName, hdPath))
     },
     forgetDevice: (deviceName) => {
       return dispatch(actions.forgetDevice(deviceName))
     },
-    unlockTrezorAccount: index => {
-      return dispatch(actions.unlockTrezorAccount(index))
+    unlockHardwareWalletAccount: (index, deviceName, hdPath) => {
+      return dispatch(actions.unlockHardwareWalletAccount(index, deviceName, hdPath))
     },
     showImportPage: () => dispatch(actions.showImportPage()),
     showConnectPage: () => dispatch(actions.showConnectPage()),
diff --git a/ui/app/components/send/send-content/send-content.component.js b/ui/app/components/send/send-content/send-content.component.js
index 7a0b1a18e..df7bcb7cc 100644
--- a/ui/app/components/send/send-content/send-content.component.js
+++ b/ui/app/components/send/send-content/send-content.component.js
@@ -11,6 +11,7 @@ export default class SendContent extends Component {
 
   static propTypes = {
     updateGas: PropTypes.func,
+    scanQrCode: PropTypes.func,
   };
 
   render () {
@@ -18,7 +19,10 @@ export default class SendContent extends Component {
       <PageContainerContent>
         <div className="send-v2__form">
           <SendFromRow />
-          <SendToRow updateGas={(updateData) => this.props.updateGas(updateData)} />
+          <SendToRow
+            updateGas={(updateData) => this.props.updateGas(updateData)}
+            scanQrCode={ _ => this.props.scanQrCode()}
+          />
           <SendAmountRow updateGas={(updateData) => this.props.updateGas(updateData)} />
           <SendGasRow />
           <SendHexDataRow />
diff --git a/ui/app/components/send/send-content/send-to-row/send-to-row.component.js b/ui/app/components/send/send-content/send-to-row/send-to-row.component.js
index 892ad5d67..1163dcffc 100644
--- a/ui/app/components/send/send-content/send-to-row/send-to-row.component.js
+++ b/ui/app/components/send/send-content/send-to-row/send-to-row.component.js
@@ -17,6 +17,7 @@ export default class SendToRow extends Component {
     updateGas: PropTypes.func,
     updateSendTo: PropTypes.func,
     updateSendToError: PropTypes.func,
+    scanQrCode: PropTypes.func,
   };
 
   static contextTypes = {
@@ -51,6 +52,7 @@ export default class SendToRow extends Component {
         showError={inError}
       >
         <EnsInput
+          scanQrCode={_ => this.props.scanQrCode()}
           accounts={toAccounts}
           closeDropdown={() => closeToDropdown()}
           dropdownOpen={toDropdownOpen}
diff --git a/ui/app/components/send/send.component.js b/ui/app/components/send/send.component.js
index 6f1b20c55..0d8ffd179 100644
--- a/ui/app/components/send/send.component.js
+++ b/ui/app/components/send/send.component.js
@@ -38,12 +38,30 @@ export default class SendTransactionScreen extends PersistentForm {
     updateAndSetGasTotal: PropTypes.func,
     updateSendErrors: PropTypes.func,
     updateSendTokenBalance: PropTypes.func,
+    scanQrCode: PropTypes.func,
+    qrCodeDetected: PropTypes.func,
+    qrCodeData: PropTypes.object,
   };
 
   static contextTypes = {
     t: PropTypes.func,
   };
 
+  componentWillReceiveProps (nextProps) {
+    if (nextProps.qrCodeData) {
+      if (nextProps.qrCodeData.type === 'address') {
+        const scannedAddress = nextProps.qrCodeData.values.address.toLowerCase()
+        const currentAddress = this.props.to && this.props.to.toLowerCase()
+        if (currentAddress !== scannedAddress) {
+          this.props.updateSendTo(scannedAddress)
+          this.updateGas({ to: scannedAddress })
+          // Clean up QR code data after handling
+          this.props.qrCodeDetected(null)
+        }
+      }
+    }
+  }
+
   updateGas ({ to: updatedToAddress, amount: value } = {}) {
     const {
       amount,
@@ -158,6 +176,16 @@ export default class SendTransactionScreen extends PersistentForm {
       address,
     })
     this.updateGas()
+
+    // Show QR Scanner modal  if ?scan=true
+    if (window.location.search === '?scan=true') {
+      this.props.scanQrCode()
+
+      // Clear the queryString param after showing the modal
+      const cleanUrl = location.href.split('?')[0]
+      history.pushState({}, null, `${cleanUrl}`)
+      window.location.hash = '#send'
+    }
   }
 
   componentWillUnmount () {
@@ -170,7 +198,10 @@ export default class SendTransactionScreen extends PersistentForm {
     return (
       <div className="page-container">
         <SendHeader history={history}/>
-        <SendContent updateGas={(updateData) => this.updateGas(updateData)}/>
+        <SendContent
+          updateGas={(updateData) => this.updateGas(updateData)}
+          scanQrCode={_ => this.props.scanQrCode()}
+        />
         <SendFooter history={history}/>
       </div>
     )
diff --git a/ui/app/components/send/send.container.js b/ui/app/components/send/send.container.js
index 44ebd2792..41735de64 100644
--- a/ui/app/components/send/send.container.js
+++ b/ui/app/components/send/send.container.js
@@ -21,11 +21,15 @@ import {
   getSendFromObject,
   getSendTo,
   getTokenBalance,
+  getQrCodeData,
 } from './send.selectors'
 import {
+  updateSendTo,
   updateSendTokenBalance,
   updateGasData,
   setGasTotal,
+  showQrScanner,
+  qrCodeDetected,
 } from '../../actions'
 import {
   resetSendState,
@@ -35,6 +39,10 @@ import {
   calcGasTotal,
 } from './send.utils.js'
 
+import {
+  SEND_ROUTE,
+} from '../../routes'
+
 module.exports = compose(
   withRouter,
   connect(mapStateToProps, mapDispatchToProps)
@@ -60,6 +68,7 @@ function mapStateToProps (state) {
     tokenBalance: getTokenBalance(state),
     tokenContract: getSelectedTokenContract(state),
     tokenToFiatRate: getSelectedTokenToFiatRate(state),
+    qrCodeData: getQrCodeData(state),
   }
 }
 
@@ -89,5 +98,8 @@ function mapDispatchToProps (dispatch) {
     },
     updateSendErrors: newError => dispatch(updateSendErrors(newError)),
     resetSendState: () => dispatch(resetSendState()),
+    scanQrCode: () => dispatch(showQrScanner(SEND_ROUTE)),
+    qrCodeDetected: (data) => dispatch(qrCodeDetected(data)),
+    updateSendTo: (to, nickname) => dispatch(updateSendTo(to, nickname)),
   }
 }
diff --git a/ui/app/components/send/send.selectors.js b/ui/app/components/send/send.selectors.js
index cf07eafe1..ab3f6d34b 100644
--- a/ui/app/components/send/send.selectors.js
+++ b/ui/app/components/send/send.selectors.js
@@ -46,6 +46,7 @@ const selectors = {
   getTokenExchangeRate,
   getUnapprovedTxs,
   transactionsSelector,
+  getQrCodeData,
 }
 
 module.exports = selectors
@@ -282,3 +283,7 @@ function transactionsSelector (state) {
     : txsToRender
       .sort((a, b) => b.time - a.time)
 }
+
+function getQrCodeData (state) {
+  return state.appState.qrCodeData
+}
diff --git a/ui/app/components/send/tests/send-container.test.js b/ui/app/components/send/tests/send-container.test.js
index 7a9120d24..57e332780 100644
--- a/ui/app/components/send/tests/send-container.test.js
+++ b/ui/app/components/send/tests/send-container.test.js
@@ -44,6 +44,7 @@ proxyquire('../send.container.js', {
     getSendEditingTransactionId: (s) => `mockEditingTransactionId:${s}`,
     getSendFromObject: (s) => `mockFrom:${s}`,
     getTokenBalance: (s) => `mockTokenBalance:${s}`,
+    getQrCodeData: (s) => `mockQrCodeData:${s}`,
   },
   '../../actions': actionSpies,
   '../../ducks/send.duck': duckActionSpies,
@@ -76,6 +77,7 @@ describe('send container', () => {
         tokenBalance: 'mockTokenBalance:mockState',
         tokenContract: 'mockTokenContract:mockState',
         tokenToFiatRate: 'mockTokenToFiatRate:mockState',
+        qrCodeData: 'mockQrCodeData:mockState',
       })
     })
 
diff --git a/ui/app/components/send/to-autocomplete/to-autocomplete.js b/ui/app/components/send/to-autocomplete/to-autocomplete.js
index 80cfa7a85..49ebf49d9 100644
--- a/ui/app/components/send/to-autocomplete/to-autocomplete.js
+++ b/ui/app/components/send/to-autocomplete/to-autocomplete.js
@@ -4,6 +4,7 @@ const h = require('react-hyperscript')
 const inherits = require('util').inherits
 const AccountListItem = require('../account-list-item/account-list-item.component').default
 const connect = require('react-redux').connect
+const Tooltip = require('../../tooltip')
 
 ToAutoComplete.contextTypes = {
   t: PropTypes.func,
@@ -94,11 +95,12 @@ ToAutoComplete.prototype.render = function () {
     dropdownOpen,
     onChange,
     inError,
+    qrScanner,
   } = this.props
 
   return h('div.send-v2__to-autocomplete', {}, [
 
-    h('input.send-v2__to-autocomplete__input', {
+    h(`input.send-v2__to-autocomplete__input${qrScanner ? '.with-qr' : ''}`, {
       placeholder: this.context.t('recipientAddress'),
       className: inError ? `send-v2__error-border` : '',
       value: to,
@@ -108,7 +110,13 @@ ToAutoComplete.prototype.render = function () {
         borderColor: inError ? 'red' : null,
       },
     }),
-
+    qrScanner && h(Tooltip, {
+      title: this.context.t('scanQrCode'),
+      position: 'bottom',
+    }, h(`i.fa.fa-qrcode.fa-lg.send-v2__to-autocomplete__qr-code`, {
+      style: { color: '#33333' },
+      onClick: () => this.props.scanQrCode(),
+    })),
     !to && h(`i.fa.fa-caret-down.fa-lg.send-v2__to-autocomplete__down-caret`, {
       style: { color: '#dedede' },
       onClick: () => this.handleInputEvent(),
diff --git a/ui/app/components/wallet-view.js b/ui/app/components/wallet-view.js
index 20c2be0f1..8e092364c 100644
--- a/ui/app/components/wallet-view.js
+++ b/ui/app/components/wallet-view.js
@@ -118,8 +118,18 @@ WalletView.prototype.render = function () {
     return kr.accounts.includes(selectedAddress)
   })
 
-  const type = keyring.type
-  const isLoose = type !== 'HD Key Tree'
+  let label = ''
+  let type
+  if (keyring) {
+    type = keyring.type
+    if (type !== 'HD Key Tree') {
+      if (type.toLowerCase().search('hardware') !== -1) {
+        label = this.context.t('hardware')
+      } else {
+        label = this.context.t('imported')
+      }
+    }
+  }
 
   return h('div.wallet-view.flex-column' + (responsiveDisplayClassname || ''), {
     style: {},
@@ -133,7 +143,7 @@ WalletView.prototype.render = function () {
         onClick: hideSidebar,
       }),
 
-      h('div.wallet-view__keyring-label.allcaps', isLoose ? this.context.t('imported') : ''),
+      h('div.wallet-view__keyring-label.allcaps', label),
 
       h('div.flex-column.flex-center.wallet-view__name-container', {
         style: { margin: '0 auto' },
diff --git a/ui/app/conversion-util.js b/ui/app/conversion-util.js
index a7a226cc5..38f5f1c50 100644
--- a/ui/app/conversion-util.js
+++ b/ui/app/conversion-util.js
@@ -46,7 +46,7 @@ const decToBigNumberViaString = n => R.pipe(String, toBigNumber['dec'])
 // Setter Maps
 const toBigNumber = {
   hex: n => new BigNumber(stripHexPrefix(n), 16),
-  dec: n => new BigNumber(n, 10),
+  dec: n => new BigNumber(String(n), 10),
   BN: n => new BigNumber(n.toString(16), 16),
 }
 const toNormalizedDenomination = {
@@ -154,7 +154,7 @@ const subtractCurrencies = (a, b, options = {}) => {
     bBase,
     ...conversionOptions
   } = options
-  const value = (new BigNumber(a, aBase)).minus(b, bBase)
+  const value = (new BigNumber(String(a), aBase)).minus(b, bBase)
 
   return converter({
     value,
diff --git a/ui/app/css/itcss/components/index.scss b/ui/app/css/itcss/components/index.scss
index 96ad5fe64..821a6b612 100644
--- a/ui/app/css/itcss/components/index.scss
+++ b/ui/app/css/itcss/components/index.scss
@@ -1,7 +1,5 @@
 @import './buttons.scss';
 
-@import './header.scss';
-
 @import './footer.scss';
 
 @import './network.scss';
diff --git a/ui/app/css/itcss/components/new-account.scss b/ui/app/css/itcss/components/new-account.scss
index b12afb124..9c639e147 100644
--- a/ui/app/css/itcss/components/new-account.scss
+++ b/ui/app/css/itcss/components/new-account.scss
@@ -162,19 +162,99 @@
 }
 
 .hw-connect {
+  width: 100%;
+
   &__header {
     &__title {
       margin-top: 5px;
       margin-bottom: 15px;
       font-size: 22px;
-      text-align: center;
     }
 
     &__msg {
       font-size: 14px;
       color: #9b9b9b;
       margin-top: 10px;
-      margin-bottom: 0px;
+      margin-bottom: 20px;
+    }
+  }
+
+  &__btn-wrapper {
+    flex: 1;
+    flex-direction: row;
+    display: flex;
+  }
+
+  &__connect-btn {
+    background-color: #259De5;
+    color: #fff;
+    border: none;
+    width: 315px;
+    min-height: 54px;
+    font-weight: 300;
+    font-size: 14px;
+    margin-bottom: 20px;
+    margin-top: 20px;
+    border-radius: 5px;
+    display: flex;
+    flex: 1;
+    margin-left: 20px;
+    margin-right: 20px;
+    justify-content: center;
+    text-transform: uppercase;
+  }
+
+  &__connect-btn.disabled {
+    cursor: not-allowed;
+    opacity: .5;
+  }
+
+  &__btn {
+    background: #fbfbfb;
+    border: 1px solid #e5e5e5;
+    height: 100px;
+    width: 150px;
+    flex: 1;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 5px;
+
+    &__img {
+      width: 95px;
+    }
+  }
+
+  &__btn.selected {
+    border: 2px solid #00a8ee;
+    width: 149px;
+  }
+
+  &__btn:first-child {
+    margin-right: 15px;
+    margin-left: 20px;
+  }
+
+  &__btn:last-child {
+    margin-right: 20px;
+  }
+
+  &__hdPath {
+    display: flex;
+    flex-direction: row;
+    margin-top: 15px;
+    margin-bottom: 30px;
+    font-size: 14px;
+
+    &__title {
+      display: flex;
+      margin-top: 10px;
+      margin-right: 15px;
+    }
+
+    &__select {
+      display: flex;
+      flex: 1;
     }
   }
 
@@ -201,6 +281,13 @@
     font-size: 18px;
   }
 
+  &__unlock-title {
+    padding-top: 10px;
+    font-weight: 400;
+    font-size: 22px;
+    margin-bottom: 15px;
+  }
+
   &__msg {
     font-size: 14px;
     color: #9b9b9b;
@@ -213,8 +300,6 @@
   }
 
   &__footer {
-    width: 100%;
-
     &__title {
       padding-top: 15px;
       padding-bottom: 12px;
@@ -228,6 +313,9 @@
       color: #9b9b9b;
       margin-top: 12px;
       margin-bottom: 27px;
+      width: 100%;
+      display: block;
+      margin-left: 20px;
     }
 
     &__link {
@@ -236,10 +324,10 @@
     }
   }
 
-  &__get-trezor {
+  &__get-hw {
     width: 100%;
-    padding-bottom: 20px;
-    padding-top: 20px;
+    padding-bottom: 10px;
+    padding-top: 10px;
 
     &__msg {
       font-size: 14px;
@@ -361,6 +449,7 @@
   margin-top: 10px;
 
   &__button {
+    background: #fff;
     height: 19px;
     display: flex;
     color: #33a4e7;
@@ -390,6 +479,8 @@
 
   &.account-list {
     height: auto;
+    padding-left: 20px;
+    padding-right: 20px;
   }
 
   &__buttons {
@@ -412,6 +503,7 @@
     min-height: 54px;
     font-weight: 300;
     font-size: 14px;
+    margin-bottom: 20px
   }
 
   &__button.unlock {
diff --git a/ui/app/css/itcss/components/send.scss b/ui/app/css/itcss/components/send.scss
index e9c872ea7..806ac8536 100644
--- a/ui/app/css/itcss/components/send.scss
+++ b/ui/app/css/itcss/components/send.scss
@@ -626,6 +626,23 @@
       top: 18px;
       right: 12px;
     }
+
+    &__qr-code {
+      position: absolute;
+      top: 13px;
+      right: 33px;
+      cursor: pointer;
+      padding: 8px 5px 5px;
+      border-radius: 4px;
+    }
+
+    &__qr-code:hover {
+      background: #f1f1f1;
+    }
+
+    &__input.with-qr {
+      padding-right: 65px;
+    }
   }
 
   &__to-autocomplete, &__memo-text-area, &__hex-data {
diff --git a/ui/app/helpers/confirm-transaction/util.js b/ui/app/helpers/confirm-transaction/util.js
index a37778c19..76e80a8ac 100644
--- a/ui/app/helpers/confirm-transaction/util.js
+++ b/ui/app/helpers/confirm-transaction/util.js
@@ -141,7 +141,7 @@ export function hasUnconfirmedTransactions (state) {
 
 export function roundExponential (value) {
   const PRECISION = 4
-  const bigNumberValue = new BigNumber(value)
+  const bigNumberValue = new BigNumber(String(value))
 
   // In JS, numbers with exponentials greater than 20 get displayed as an exponential.
   return bigNumberValue.e > 20 ? Number(bigNumberValue.toPrecision(PRECISION)) : value
diff --git a/ui/app/reducers/app.js b/ui/app/reducers/app.js
index e4e4c8581..c246e7904 100644
--- a/ui/app/reducers/app.js
+++ b/ui/app/reducers/app.js
@@ -51,6 +51,7 @@ function reduceApp (state, action) {
     sidebarOpen: false,
     alertOpen: false,
     alertMessage: null,
+    qrCodeData: null,
     networkDropdownOpen: false,
     currentView: seedWords ? seedConfView : defaultView,
     accountDetail: {
@@ -66,6 +67,10 @@ function reduceApp (state, action) {
     isMouseUser: false,
     gasIsLoading: false,
     networkNonce: null,
+    defaultHdPaths: {
+      trezor: `m/44'/60'/0'/0`,
+      ledger: `m/44'/60'/0'/0/0`,
+    },
   }, state.appState)
 
   switch (action.type) {
@@ -91,7 +96,7 @@ function reduceApp (state, action) {
         sidebarOpen: false,
       })
 
-    // sidebar methods
+    // alert methods
     case actions.ALERT_OPEN:
       return extend(appState, {
         alertOpen: true,
@@ -104,6 +109,13 @@ function reduceApp (state, action) {
         alertMessage: null,
       })
 
+    // qr scanner methods
+    case actions.QR_CODE_DETECTED:
+      return extend(appState, {
+        qrCodeData: action.value,
+      })
+
+
     // modal methods:
     case actions.MODAL_OPEN:
       const { name, ...modalProps } = action.payload
@@ -517,6 +529,15 @@ function reduceApp (state, action) {
         warning: '',
       })
 
+    case actions.SET_HARDWARE_WALLET_DEFAULT_HD_PATH:
+      const { device, path } = action.value
+      const newDefaults = {...appState.defaultHdPaths}
+      newDefaults[device] = path
+
+      return extend(appState, {
+        defaultHdPaths: newDefaults,
+      })
+
     case actions.SHOW_LOADING:
       return extend(appState, {
         isLoading: true,
diff --git a/ui/app/selectors/confirm-transaction.js b/ui/app/selectors/confirm-transaction.js
index aa1fc5404..6e760c429 100644
--- a/ui/app/selectors/confirm-transaction.js
+++ b/ui/app/selectors/confirm-transaction.js
@@ -159,7 +159,7 @@ export const approveTokenAmountAndToAddressSelector = createSelector(
       if (tokenDecimals) {
         tokenAmount = calcTokenAmount(value, tokenDecimals)
       }
-      
+
       tokenAmount = roundExponential(tokenAmount)
     }
 
diff --git a/ui/app/token-util.js b/ui/app/token-util.js
index 0d4233766..8798ed266 100644
--- a/ui/app/token-util.js
+++ b/ui/app/token-util.js
@@ -44,7 +44,7 @@ async function getSymbolAndDecimals (tokenAddress, existingTokens = []) {
 
 function calcTokenAmount (value, decimals) {
   const multiplier = Math.pow(10, Number(decimals || 0))
-  return new BigNumber(value).div(multiplier).toNumber()
+  return new BigNumber(String(value)).div(multiplier).toNumber()
 }
 
 
diff --git a/ui/app/util.js b/ui/app/util.js
index 8b194e0c7..ade4fec8a 100644
--- a/ui/app/util.js
+++ b/ui/app/util.js
@@ -271,9 +271,9 @@ function getContractAtAddress (tokenAddress) {
   return global.eth.contract(abi).at(tokenAddress)
 }
 
-function exportAsFile (filename, data) {
+function exportAsFile (filename, data, type = 'text/csv') {
   // source: https://stackoverflow.com/a/33542499 by Ludovic Feltz
-  const blob = new Blob([data], {type: 'text/csv'})
+  const blob = new Blob([data], {type})
   if (window.navigator.msSaveOrOpenBlob) {
     window.navigator.msSaveBlob(blob, filename)
   } else {
diff --git a/ui/lib/webcam-utils.js b/ui/lib/webcam-utils.js
new file mode 100644
index 000000000..eb717b23a
--- /dev/null
+++ b/ui/lib/webcam-utils.js
@@ -0,0 +1,36 @@
+'use strict'
+
+import DetectRTC from 'detectrtc'
+const { ENVIRONMENT_TYPE_POPUP } = require('../../app/scripts/lib/enums')
+const { getEnvironmentType, getPlatform } = require('../../app/scripts/lib/util')
+const { PLATFORM_BRAVE, PLATFORM_FIREFOX } = require('../../app/scripts/lib/enums')
+
+class WebcamUtils {
+
+  static checkStatus () {
+    return new Promise((resolve, reject) => {
+      const isPopup = getEnvironmentType(window.location.href) === ENVIRONMENT_TYPE_POPUP
+      const isFirefoxOrBrave = getPlatform() === (PLATFORM_FIREFOX || PLATFORM_BRAVE)
+      try {
+        DetectRTC.load(_ => {
+          if (DetectRTC.hasWebcam) {
+              let environmentReady = true
+              if ((isFirefoxOrBrave && isPopup) || (isPopup && !DetectRTC.isWebsiteHasWebcamPermissions)) {
+                environmentReady = false
+              }
+              resolve({
+                permissions: DetectRTC.isWebsiteHasWebcamPermissions,
+                environmentReady,
+              })
+          } else {
+              reject({type: 'NO_WEBCAM_FOUND'})
+          }
+        })
+      } catch (e) {
+        reject({type: 'UNKNOWN_ERROR'})
+      }
+    })
+  }
+}
+
+module.exports = WebcamUtils