Merge pull request #4606 from MetaMask/WatchTokenFeature

Add metamask_watchAsset

24 files changed, 6858 insertions, 6184 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ddaa496dd..097d57cdf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Current Develop Branch
 
+- (#4606)[https://github.com/MetaMask/metamask-extension/pull/4606]: Add new metamask_watchAsset method.
+
 ## 4.9.3 Wed Aug 15 2018
 
 - (#4897)[https://github.com/MetaMask/metamask-extension/pull/4897]: QR code scan for recipient addresses.
diff --git a/app/_locales/en/messages.json b/app/_locales/en/messages.json
index 0119ebe8e..3cc8dae34 100644
--- a/app/_locales/en/messages.json
+++ b/app/_locales/en/messages.json
@@ -29,6 +29,9 @@
   "addTokens": {
     "message": "Add Tokens"
   },
+  "addSuggestedTokens": {
+    "message": "Add Suggested Tokens"
+  },
   "addAcquiredTokens": {
     "message": "Add the tokens you've acquired using MetaMask"
   },
diff --git a/app/scripts/background.js b/app/scripts/background.js
index d4d87e0d5..546fef569 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -256,6 +256,7 @@ function setupController (initState, initLangCode) {
     showUnconfirmedMessage: triggerUi,
     unlockAccountMessage: triggerUi,
     showUnapprovedTx: triggerUi,
+    showWatchAssetUi: showWatchAssetUi,
     // initial state
     initState,
     // initial locale code
@@ -443,9 +444,28 @@ function triggerUi () {
   })
 }
 
+/**
+ * Opens the browser popup for user confirmation of watchAsset
+ * then it waits until user interact with the UI
+ */
+function showWatchAssetUi () {
+  triggerUi()
+  return new Promise(
+    (resolve) => {
+      var interval = setInterval(() => {
+        if (!notificationIsOpen) {
+          clearInterval(interval)
+          resolve()
+        }
+      }, 1000)
+    }
+  )
+}
+
 // On first install, open a window to MetaMask website to how-it-works.
 extension.runtime.onInstalled.addListener(function (details) {
   if ((details.reason === 'install') && (!METAMASK_DEBUG)) {
     extension.tabs.create({url: 'https://metamask.io/#how-it-works'})
   }
 })
+
diff --git a/app/scripts/controllers/preferences.js b/app/scripts/controllers/preferences.js
index 1b85e4fd1..464a37017 100644
--- a/app/scripts/controllers/preferences.js
+++ b/app/scripts/controllers/preferences.js
@@ -1,5 +1,6 @@
 const ObservableStore = require('obs-store')
 const normalizeAddress = require('eth-sig-util').normalize
+const { isValidAddress } = require('ethereumjs-util')
 const extend = require('xtend')
 
 
@@ -14,6 +15,7 @@ class PreferencesController {
    * @property {string} store.currentAccountTab Indicates the selected tab in the ui
    * @property {array} store.tokens The tokens the user wants display in their token lists
    * @property {object} store.accountTokens The tokens stored per account and then per network type
+   * @property {object} store.assetImages Contains assets objects related to assets added
    * @property {boolean} store.useBlockie The users preference for blockie identicons within the UI
    * @property {object} store.featureFlags A key-boolean map, where keys refer to features and booleans to whether the
    * user wishes to see that feature
@@ -26,7 +28,9 @@ class PreferencesController {
       frequentRpcList: [],
       currentAccountTab: 'history',
       accountTokens: {},
+      assetImages: {},
       tokens: [],
+      suggestedTokens: {},
       useBlockie: false,
       featureFlags: {},
       currentLocale: opts.initLangCode,
@@ -37,6 +41,7 @@ class PreferencesController {
     this.diagnostics = opts.diagnostics
     this.network = opts.network
     this.store = new ObservableStore(initState)
+    this.showWatchAssetUi = opts.showWatchAssetUi
     this._subscribeProviderType()
   }
 // PUBLIC METHODS
@@ -51,6 +56,53 @@ class PreferencesController {
     this.store.updateState({ useBlockie: val })
   }
 
+  getSuggestedTokens () {
+    return this.store.getState().suggestedTokens
+  }
+
+  getAssetImages () {
+    return this.store.getState().assetImages
+  }
+
+  addSuggestedERC20Asset (tokenOpts) {
+    this._validateERC20AssetParams(tokenOpts)
+    const suggested = this.getSuggestedTokens()
+    const { rawAddress, symbol, decimals, image } = tokenOpts
+    const address = normalizeAddress(rawAddress)
+    const newEntry = { address, symbol, decimals, image }
+    suggested[address] = newEntry
+    this.store.updateState({ suggestedTokens: suggested })
+  }
+
+  /**
+   * RPC engine middleware for requesting new asset added
+   *
+   * @param req
+   * @param res
+   * @param {Function} - next
+   * @param {Function} - end
+   */
+  async requestWatchAsset (req, res, next, end) {
+    if (req.method === 'metamask_watchAsset') {
+      const { type, options } = req.params
+      switch (type) {
+        case 'ERC20':
+          const result = await this._handleWatchAssetERC20(options)
+          if (result instanceof Error) {
+            end(result)
+          } else {
+            res.result = result
+            end()
+          }
+          break
+        default:
+          end(new Error(`Asset of type ${type} not supported`))
+      }
+    } else {
+      next()
+    }
+  }
+
   /**
    * Getter for the `useBlockie` property
    *
@@ -186,6 +238,13 @@ class PreferencesController {
     return selected
   }
 
+  removeSuggestedTokens () {
+    return new Promise((resolve, reject) => {
+      this.store.updateState({ suggestedTokens: {} })
+      resolve({})
+    })
+  }
+
   /**
    * Setter for the `selectedAddress` property
    *
@@ -232,11 +291,11 @@ class PreferencesController {
    * @returns {Promise<array>} Promises the new array of AddedToken objects.
    *
    */
-  async addToken (rawAddress, symbol, decimals) {
+  async addToken (rawAddress, symbol, decimals, image) {
     const address = normalizeAddress(rawAddress)
     const newEntry = { address, symbol, decimals }
-
     const tokens = this.store.getState().tokens
+    const assetImages = this.getAssetImages()
     const previousEntry = tokens.find((token, index) => {
       return token.address === address
     })
@@ -247,7 +306,8 @@ class PreferencesController {
     } else {
       tokens.push(newEntry)
     }
-    this._updateAccountTokens(tokens)
+    assetImages[address] = image
+    this._updateAccountTokens(tokens, assetImages)
     return Promise.resolve(tokens)
   }
 
@@ -260,8 +320,10 @@ class PreferencesController {
    */
   removeToken (rawAddress) {
     const tokens = this.store.getState().tokens
+    const assetImages = this.getAssetImages()
     const updatedTokens = tokens.filter(token => token.address !== rawAddress)
-    this._updateAccountTokens(updatedTokens)
+    delete assetImages[rawAddress]
+    this._updateAccountTokens(updatedTokens, assetImages)
     return Promise.resolve(updatedTokens)
   }
 
@@ -387,6 +449,7 @@ class PreferencesController {
   //
   // PRIVATE METHODS
   //
+
   /**
    * Subscription to network provider type.
    *
@@ -405,10 +468,10 @@ class PreferencesController {
    * @param {array} tokens Array of tokens to be updated.
    *
    */
-  _updateAccountTokens (tokens) {
+  _updateAccountTokens (tokens, assetImages) {
     const { accountTokens, providerType, selectedAddress } = this._getTokenRelatedStates()
     accountTokens[selectedAddress][providerType] = tokens
-    this.store.updateState({ accountTokens, tokens })
+    this.store.updateState({ accountTokens, tokens, assetImages })
   }
 
   /**
@@ -438,6 +501,47 @@ class PreferencesController {
     const tokens = accountTokens[selectedAddress][providerType]
     return { tokens, accountTokens, providerType, selectedAddress }
   }
+
+  /**
+   * Handle the suggestion of an ERC20 asset through `watchAsset`
+   * *
+   * @param {Promise} promise Promise according to addition of ERC20 token
+   *
+   */
+  async _handleWatchAssetERC20 (options) {
+    const { address, symbol, decimals, image } = options
+    const rawAddress = address
+    try {
+      this._validateERC20AssetParams({ rawAddress, symbol, decimals })
+    } catch (err) {
+      return err
+    }
+    const tokenOpts = { rawAddress, decimals, symbol, image }
+    this.addSuggestedERC20Asset(tokenOpts)
+    return this.showWatchAssetUi().then(() => {
+      const tokenAddresses = this.getTokens().filter(token => token.address === normalizeAddress(rawAddress))
+      return tokenAddresses.length > 0
+    })
+  }
+
+  /**
+   * Validates that the passed options for suggested token have all required properties.
+   *
+   * @param {Object} opts The options object to validate
+   * @throws {string} Throw a custom error indicating that address, symbol and/or decimals
+   * doesn't fulfill requirements
+   *
+   */
+  _validateERC20AssetParams (opts) {
+    const { rawAddress, symbol, decimals } = opts
+    if (!rawAddress || !symbol || !decimals) throw new Error(`Cannot suggest token without address, symbol, and decimals`)
+    if (!(symbol.length < 6)) throw new Error(`Invalid symbol ${symbol} more than five characters`)
+    const numDecimals = parseInt(decimals, 10)
+    if (isNaN(numDecimals) || numDecimals > 36 || numDecimals < 0) {
+      throw new Error(`Invalid decimals ${decimals} must be at least 0, and not over 36`)
+    }
+    if (!isValidAddress(rawAddress)) throw new Error(`Invalid address ${rawAddress}`)
+  }
 }
 
 module.exports = PreferencesController
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index a6215d51b..98cb62bfa 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -92,6 +92,7 @@ module.exports = class MetamaskController extends EventEmitter {
     this.preferencesController = new PreferencesController({
       initState: initState.PreferencesController,
       initLangCode: opts.initLangCode,
+      showWatchAssetUi: opts.showWatchAssetUi,
       network: this.networkController,
     })
 
@@ -386,6 +387,7 @@ module.exports = class MetamaskController extends EventEmitter {
       setSelectedAddress: nodeify(preferencesController.setSelectedAddress, preferencesController),
       addToken: nodeify(preferencesController.addToken, preferencesController),
       removeToken: nodeify(preferencesController.removeToken, preferencesController),
+      removeSuggestedTokens: nodeify(preferencesController.removeSuggestedTokens, preferencesController),
       setCurrentAccountTab: nodeify(preferencesController.setCurrentAccountTab, preferencesController),
       setAccountLabel: nodeify(preferencesController.setAccountLabel, preferencesController),
       setFeatureFlag: nodeify(preferencesController.setFeatureFlag, preferencesController),
@@ -1250,6 +1252,7 @@ module.exports = class MetamaskController extends EventEmitter {
     engine.push(createOriginMiddleware({ origin }))
     engine.push(createLoggerMiddleware({ origin }))
     engine.push(filterMiddleware)
+    engine.push(this.preferencesController.requestWatchAsset.bind(this.preferencesController))
     engine.push(createProviderMiddleware({ provider: this.provider }))
 
     // setup connection
diff --git a/old-ui/app/account-detail.js b/old-ui/app/account-detail.js
index c67f0cf71..d240fc38e 100644
--- a/old-ui/app/account-detail.js
+++ b/old-ui/app/account-detail.js
@@ -32,6 +32,7 @@ function mapStateToProps (state) {
     currentCurrency: state.metamask.currentCurrency,
     currentAccountTab: state.metamask.currentAccountTab,
     tokens: state.metamask.tokens,
+    suggestedTokens: state.metamask.suggestedTokens,
     computedBalances: state.metamask.computedBalances,
   }
 }
@@ -49,6 +50,10 @@ AccountDetailScreen.prototype.render = function () {
   var account = props.accounts[selected]
   const { network, conversionRate, currentCurrency } = props
 
+  if (Object.keys(props.suggestedTokens).length > 0) {
+    this.props.dispatch(actions.showAddSuggestedTokenPage())
+  }
+
   return (
 
     h('.account-detail-section.full-flex-height', [
diff --git a/old-ui/app/add-suggested-token.js b/old-ui/app/add-suggested-token.js
new file mode 100644
index 000000000..51be4c5f2
--- /dev/null
+++ b/old-ui/app/add-suggested-token.js
@@ -0,0 +1,202 @@
+const inherits = require('util').inherits
+const Component = require('react').Component
+const h = require('react-hyperscript')
+const connect = require('react-redux').connect
+const actions = require('../../ui/app/actions')
+const Tooltip = require('./components/tooltip.js')
+const ethUtil = require('ethereumjs-util')
+const Copyable = require('./components/copyable')
+const addressSummary = require('./util').addressSummary
+
+
+module.exports = connect(mapStateToProps)(AddSuggestedTokenScreen)
+
+function mapStateToProps (state) {
+  return {
+    identities: state.metamask.identities,
+    suggestedTokens: state.metamask.suggestedTokens,
+  }
+}
+
+inherits(AddSuggestedTokenScreen, Component)
+function AddSuggestedTokenScreen () {
+    this.state = {
+    warning: null,
+  }
+  Component.call(this)
+}
+
+AddSuggestedTokenScreen.prototype.render = function () {
+  const state = this.state
+  const props = this.props
+  const { warning } = state
+  const key = Object.keys(props.suggestedTokens)[0]
+  const { address, symbol, decimals } = props.suggestedTokens[key]
+
+  return (
+    h('.flex-column.flex-grow', [
+
+      // subtitle and nav
+      h('.section-title.flex-row.flex-center', [
+        h('h2.page-subtitle', 'Add Suggested Token'),
+      ]),
+
+      h('.error', {
+        style: {
+          display: warning ? 'block' : 'none',
+          padding: '0 20px',
+          textAlign: 'center',
+        },
+      }, warning),
+
+      // conf view
+      h('.flex-column.flex-justify-center.flex-grow.select-none', [
+        h('.flex-space-around', {
+          style: {
+            padding: '20px',
+          },
+        }, [
+
+          h('div', [
+            h(Tooltip, {
+              position: 'top',
+              title: 'The contract of the actual token contract. Click for more info.',
+            }, [
+              h('a', {
+                style: { fontWeight: 'bold', paddingRight: '10px'},
+                href: 'https://support.metamask.io/kb/article/24-what-is-a-token-contract-address',
+                target: '_blank',
+              }, [
+                h('span', 'Token Contract Address  '),
+                h('i.fa.fa-question-circle'),
+              ]),
+            ]),
+          ]),
+
+          h('div', {
+            style: { display: 'flex' },
+          }, [
+            h(Copyable, {
+            value: ethUtil.toChecksumAddress(address),
+            }, [
+              h('span#token-address', {
+                style: {
+                  width: 'inherit',
+                  flex: '1 0 auto',
+                  height: '30px',
+                  margin: '8px',
+                  display: 'flex',
+                },
+              }, addressSummary(address, 24, 4, false)),
+            ]),
+          ]),
+
+          h('div', [
+            h('span', {
+              style: { fontWeight: 'bold', paddingRight: '10px'},
+            }, 'Token Symbol'),
+          ]),
+
+          h('div', { style: {display: 'flex'} }, [
+            h('p#token_symbol', {
+              style: {
+                width: 'inherit',
+                flex: '1 0 auto',
+                height: '30px',
+                margin: '8px',
+              },
+            }, symbol),
+          ]),
+
+          h('div', [
+            h('span', {
+              style: { fontWeight: 'bold', paddingRight: '10px'},
+            }, 'Decimals of Precision'),
+          ]),
+
+          h('div', { style: {display: 'flex'} }, [
+            h('p#token_decimals', {
+              type: 'number',
+              style: {
+                width: 'inherit',
+                flex: '1 0 auto',
+                height: '30px',
+                margin: '8px',
+              },
+            }, decimals),
+          ]),
+
+          h('button', {
+            style: {
+              alignSelf: 'center',
+              margin: '8px',
+            },
+            onClick: (event) => {
+              this.props.dispatch(actions.removeSuggestedTokens())
+            },
+          }, 'Cancel'),
+
+          h('button', {
+            style: {
+              alignSelf: 'center',
+              margin: '8px',
+            },
+            onClick: (event) => {
+              const valid = this.validateInputs({ address, symbol, decimals })
+              if (!valid) return
+
+              this.props.dispatch(actions.addToken(address.trim(), symbol.trim(), decimals))
+                .then(() => {
+                  this.props.dispatch(actions.removeSuggestedTokens())
+                })
+            },
+          }, 'Add'),
+        ]),
+      ]),
+    ])
+  )
+}
+
+AddSuggestedTokenScreen.prototype.componentWillMount = function () {
+  if (typeof global.ethereumProvider === 'undefined') return
+}
+
+AddSuggestedTokenScreen.prototype.validateInputs = function (opts) {
+  let msg = ''
+  const identitiesList = Object.keys(this.props.identities)
+  const { address, symbol, decimals } = opts
+  const standardAddress = ethUtil.addHexPrefix(address).toLowerCase()
+
+  const validAddress = ethUtil.isValidAddress(address)
+  if (!validAddress) {
+    msg += 'Address is invalid.'
+  }
+
+  const validDecimals = decimals >= 0 && decimals < 36
+  if (!validDecimals) {
+    msg += 'Decimals must be at least 0, and not over 36. '
+  }
+
+  const symbolLen = symbol.trim().length
+  const validSymbol = symbolLen > 0 && symbolLen < 10
+  if (!validSymbol) {
+    msg += 'Symbol must be between 0 and 10 characters.'
+  }
+
+  const ownAddress = identitiesList.includes(standardAddress)
+  if (ownAddress) {
+    msg = 'Personal address detected. Input the token contract address.'
+  }
+
+  const isValid = validAddress && validDecimals && !ownAddress
+
+  if (!isValid) {
+    this.setState({
+      warning: msg,
+    })
+  } else {
+    this.setState({ warning: null })
+  }
+
+  return isValid
+}
diff --git a/old-ui/app/app.js b/old-ui/app/app.js
index d3e9e823b..9be21ebad 100644
--- a/old-ui/app/app.js
+++ b/old-ui/app/app.js
@@ -23,6 +23,7 @@ const generateLostAccountsNotice = require('../lib/lost-accounts-notice')
 // other views
 const ConfigScreen = require('./config')
 const AddTokenScreen = require('./add-token')
+const AddSuggestedTokenScreen = require('./add-suggested-token')
 const Import = require('./accounts/import')
 const InfoScreen = require('./info')
 const NewUiAnnouncement = require('./new-ui-annoucement')
@@ -74,6 +75,7 @@ function mapStateToProps (state) {
     lostAccounts: state.metamask.lostAccounts,
     frequentRpcList: state.metamask.frequentRpcList || [],
     featureFlags,
+    suggestedTokens: state.metamask.suggestedTokens,
 
     // state needed to get account dropdown temporarily rendering from app bar
     identities,
@@ -236,6 +238,10 @@ App.prototype.renderPrimary = function () {
       log.debug('rendering add-token screen from unlock screen.')
       return h(AddTokenScreen, {key: 'add-token'})
 
+    case 'add-suggested-token':
+      log.debug('rendering add-suggested-token screen from unlock screen.')
+      return h(AddSuggestedTokenScreen, {key: 'add-suggested-token'})
+
     case 'config':
       log.debug('rendering config screen')
       return h(ConfigScreen, {key: 'config'})
diff --git a/package-lock.json b/package-lock.json
index 924fc53d3..ccc694d35 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,9 +10,9 @@
       "integrity": "sha512-yd7CkUughvHQoEahQqcMdrZw6o/6PwUxiRkfZuVDVHCDe77mysD/suoNyk5mK6phTnRW1kyIbPHyCJgxw++LXg==",
       "dev": true,
       "requires": {
-        "chalk": "2.3.0",
-        "esutils": "2.0.2",
-        "js-tokens": "3.0.2"
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^3.0.0"
       },
       "dependencies": {
         "ansi-styles": {
@@ -21,7 +21,7 @@
           "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
           "dev": true,
           "requires": {
-            "color-convert": "1.9.1"
+            "color-convert": "^1.9.0"
           }
         },
         "chalk": {
@@ -30,9 +30,9 @@
           "integrity": "sha512-Az5zJR2CBujap2rqXGaJKaPHyJ0IrUimvYNX+ncCy8PJP4ltOGTrHUIo097ZaL2zMeKYpiCdqDvS6zdrTFok3Q==",
           "dev": true,
           "requires": {
-            "ansi-styles": "3.2.0",
-            "escape-string-regexp": "1.0.5",
-            "supports-color": "4.5.0"
+            "ansi-styles": "^3.1.0",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^4.0.0"
           }
         },
         "supports-color": {
@@ -41,7 +41,7 @@
           "integrity": "sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=",
           "dev": true,
           "requires": {
-            "has-flag": "2.0.0"
+            "has-flag": "^2.0.0"
           }
         }
       }
@@ -53,10 +53,10 @@
       "dev": true,
       "requires": {
         "@babel/types": "7.0.0-beta.49",
-        "jsesc": "2.5.1",
-        "lodash": "4.17.10",
-        "source-map": "0.5.7",
-        "trim-right": "1.0.1"
+        "jsesc": "^2.5.1",
+        "lodash": "^4.17.5",
+        "source-map": "^0.5.0",
+        "trim-right": "^1.0.1"
       },
       "dependencies": {
         "@babel/types": {
@@ -65,9 +65,9 @@
           "integrity": "sha1-t+Oxw/TUz+Eb34yJ8e/V4WF7h6Y=",
           "dev": true,
           "requires": {
-            "esutils": "2.0.2",
-            "lodash": "4.17.10",
-            "to-fast-properties": "2.0.0"
+            "esutils": "^2.0.2",
+            "lodash": "^4.17.5",
+            "to-fast-properties": "^2.0.0"
           }
         },
         "jsesc": {
@@ -126,9 +126,9 @@
           "integrity": "sha1-t+Oxw/TUz+Eb34yJ8e/V4WF7h6Y=",
           "dev": true,
           "requires": {
-            "esutils": "2.0.2",
-            "lodash": "4.17.10",
-            "to-fast-properties": "2.0.0"
+            "esutils": "^2.0.2",
+            "lodash": "^4.17.5",
+            "to-fast-properties": "^2.0.0"
           }
         },
         "to-fast-properties": {
@@ -145,9 +145,9 @@
       "integrity": "sha1-lr3GtD4TSCASumaRsQGEktOWIsw=",
       "dev": true,
       "requires": {
-        "chalk": "2.4.1",
-        "esutils": "2.0.2",
-        "js-tokens": "3.0.2"
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^3.0.0"
       },
       "dependencies": {
         "ansi-styles": {
@@ -156,7 +156,7 @@
           "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
           "dev": true,
           "requires": {
-            "color-convert": "1.9.1"
+            "color-convert": "^1.9.0"
           }
         },
         "chalk": {
@@ -165,9 +165,9 @@
           "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
           "dev": true,
           "requires": {
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@@ -391,10 +391,10 @@
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@@ -443,15 +443,15 @@
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@@ -470,15 +470,15 @@
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@@ -610,10 +610,10 @@
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@@ -679,9 +679,9 @@
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@@ -714,13 +714,13 @@
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@@ -729,36 +729,36 @@
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@@ -970,7 +970,7 @@
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@@ -1061,7 +1061,7 @@
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@@ -1148,37 +1148,37 @@
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-        "webpack": "3.11.0",
-        "webpack-hot-middleware": "2.22.1"
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+        "glamor": "^2.20.40",
+        "glamorous": "^4.12.1",
+        "global": "^4.3.2",
+        "html-loader": "^0.5.5",
+        "html-webpack-plugin": "^2.30.1",
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+        "webpack": "^3.11.0",
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@@ -1193,10 +1193,10 @@
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-            "uri-js": "3.0.2"
+            "fast-deep-equal": "^1.0.0",
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@@ -1217,9 +1217,9 @@
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@@ -1240,13 +1240,13 @@
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+            "signal-exit": "^3.0.0",
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@@ -1255,9 +1255,9 @@
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-            "pkg-dir": "2.0.0"
+            "commondir": "^1.0.1",
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@@ -1266,7 +1266,7 @@
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@@ -1281,10 +1281,10 @@
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-            "pify": "2.3.0",
-            "strip-bom": "3.0.0"
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@@ -8103,15 +8104,16 @@
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@@ -8212,7 +8214,7 @@
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@@ -8308,16 +8310,16 @@
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       "requires": {
-        "boom": "5.2.0",
-        "hoek": "4.2.1"
+        "boom": "5.x.x",
+        "hoek": "4.x.x"
       },
       "dependencies": {
         "boom": {
@@ -31511,7 +31499,7 @@
           "integrity": "sha512-Z5BTk6ZRe4tXXQlkqftmsAUANpXmuwlsF5Oov8ThoMbQRzdGTA1ngYRW160GexgOgjsFOKJz0LYhoNi+2AMBUw==",
           "dev": true,
           "requires": {
-            "hoek": "4.2.1"
+            "hoek": "4.x.x"
           }
         },
         "hoek": {
@@ -31527,7 +31515,7 @@
       "resolved": "https://registry.npmjs.org/write/-/write-0.2.1.tgz",
       "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
       "requires": {
-        "mkdirp": "0.5.1"
+        "mkdirp": "^0.5.1"
       }
     },
     "write-file-stdout": {
@@ -31542,9 +31530,9 @@
       "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
       "dev": true,
       "requires": {
-        "async-limiter": "1.0.0",
-        "safe-buffer": "5.1.1",
-        "ultron": "1.1.1"
+        "async-limiter": "~1.0.0",
+        "safe-buffer": "~5.1.0",
+        "ultron": "~1.1.0"
       }
     },
     "x-is-function": {
@@ -31562,10 +31550,10 @@
       "resolved": "https://registry.npmjs.org/xhr/-/xhr-2.4.1.tgz",
       "integrity": "sha512-pAIU5vBr9Hiy5cpFIbPnwf0C18ZF86DBsZKrlsf87N5De/JbA6RJ83UP/cv+aljl4S40iRVMqP4pr4sF9Dnj0A==",
       "requires": {
-        "global": "4.3.2",
-        "is-function": "1.0.1",
-        "parse-headers": "2.0.1",
-        "xtend": "4.0.1"
+        "global": "~4.3.0",
+        "is-function": "^1.0.1",
+        "parse-headers": "^2.0.0",
+        "xtend": "^4.0.0"
       }
     },
     "xhr-request": {
@@ -31574,13 +31562,13 @@
       "integrity": "sha512-Y7qzEaR3FDtL3fP30k9wO/e+FBnBByZeybKOhASsGP30NIkRAAkKD/sCnLvgEfAIEC1rcmK7YG8f4oEnIrrWzA==",
       "dev": true,
       "requires": {
-        "buffer-to-arraybuffer": "0.0.5",
-        "object-assign": "4.1.1",
-        "query-string": "5.1.1",
-        "simple-get": "2.8.1",
-        "timed-out": "4.0.1",
-        "url-set-query": "1.0.0",
-        "xhr": "2.4.1"
+        "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": {
@@ -31589,7 +31577,7 @@
       "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
       "dev": true,
       "requires": {
-        "xhr-request": "1.1.0"
+        "xhr-request": "^1.0.1"
       }
     },
     "xhr2": {
@@ -31609,8 +31597,8 @@
       "integrity": "sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==",
       "dev": true,
       "requires": {
-        "sax": "1.2.4",
-        "xmlbuilder": "9.0.7"
+        "sax": ">=0.6.0",
+        "xmlbuilder": "~9.0.1"
       }
     },
     "xmlbuilder": {
@@ -31675,19 +31663,19 @@
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz",
       "integrity": "sha1-eC7CHvQDNF+DCoCMo9UTr1YGUgg=",
       "requires": {
-        "camelcase": "3.0.0",
-        "cliui": "3.2.0",
-        "decamelize": "1.2.0",
-        "get-caller-file": "1.0.2",
-        "os-locale": "1.4.0",
-        "read-pkg-up": "1.0.1",
-        "require-directory": "2.1.1",
-        "require-main-filename": "1.0.1",
-        "set-blocking": "2.0.0",
-        "string-width": "1.0.2",
-        "which-module": "1.0.0",
-        "y18n": "3.2.1",
-        "yargs-parser": "4.2.1"
+        "camelcase": "^3.0.0",
+        "cliui": "^3.2.0",
+        "decamelize": "^1.1.1",
+        "get-caller-file": "^1.0.1",
+        "os-locale": "^1.4.0",
+        "read-pkg-up": "^1.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^1.0.1",
+        "set-blocking": "^2.0.0",
+        "string-width": "^1.0.2",
+        "which-module": "^1.0.0",
+        "y18n": "^3.2.1",
+        "yargs-parser": "^4.2.0"
       }
     },
     "yargs-parser": {
@@ -31695,7 +31683,7 @@
       "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
       "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
       "requires": {
-        "camelcase": "3.0.0"
+        "camelcase": "^3.0.0"
       }
     },
     "yauzl": {
@@ -31704,7 +31692,7 @@
       "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
       "dev": true,
       "requires": {
-        "fd-slicer": "1.0.1"
+        "fd-slicer": "~1.0.1"
       }
     },
     "yazl": {
@@ -31713,7 +31701,7 @@
       "integrity": "sha1-7CblzIfVYBud+EMtvdPNLlFzoHE=",
       "dev": true,
       "requires": {
-        "buffer-crc32": "0.2.13"
+        "buffer-crc32": "~0.2.3"
       }
     },
     "yeast": {
diff --git a/test/unit/app/controllers/preferences-controller-test.js b/test/unit/app/controllers/preferences-controller-test.js
index 9b2c846bd..2c261be90 100644
--- a/test/unit/app/controllers/preferences-controller-test.js
+++ b/test/unit/app/controllers/preferences-controller-test.js
@@ -1,6 +1,7 @@
 const assert = require('assert')
 const ObservableStore = require('obs-store')
 const PreferencesController = require('../../../../app/scripts/controllers/preferences')
+const sinon = require('sinon')
 
 describe('preferences controller', function () {
   let preferencesController
@@ -339,5 +340,114 @@ describe('preferences controller', function () {
       assert.deepEqual(tokensSecond, initialTokensSecond, 'tokens equal for same network')
     })
   })
+
+  describe('on watchAsset', function () {
+    var stubNext, stubEnd, stubHandleWatchAssetERC20, asy, req, res
+    const sandbox = sinon.createSandbox()
+
+    beforeEach(() => {
+      req = {params: {}}
+      res = {}
+      asy = {next: () => {}, end: () => {}}
+      stubNext = sandbox.stub(asy, 'next')
+      stubEnd = sandbox.stub(asy, 'end').returns(0)
+      stubHandleWatchAssetERC20 = sandbox.stub(preferencesController, '_handleWatchAssetERC20')
+    })
+    after(() => {
+      sandbox.restore()
+    })
+
+    it('shouldn not do anything if method not corresponds', async function () {
+      const asy = {next: () => {}, end: () => {}}
+      var stubNext = sandbox.stub(asy, 'next')
+      var stubEnd = sandbox.stub(asy, 'end').returns(0)
+      req.method = 'metamask'
+      await preferencesController.requestWatchAsset(req, res, asy.next, asy.end)
+      sandbox.assert.notCalled(stubEnd)
+      sandbox.assert.called(stubNext)
+    })
+    it('should do something if method is supported', async function () {
+      const asy = {next: () => {}, end: () => {}}
+      var stubNext = sandbox.stub(asy, 'next')
+      var stubEnd = sandbox.stub(asy, 'end').returns(0)
+      req.method = 'metamask_watchAsset'
+      req.params.type = 'someasset'
+      await preferencesController.requestWatchAsset(req, res, asy.next, asy.end)
+      sandbox.assert.called(stubEnd)
+      sandbox.assert.notCalled(stubNext)
+    })
+    it('should through error if method is supported but asset type is not', async function () {
+      req.method = 'metamask_watchAsset'
+      req.params.type = 'someasset'
+      await preferencesController.requestWatchAsset(req, res, asy.next, asy.end)
+      sandbox.assert.called(stubEnd)
+      sandbox.assert.notCalled(stubHandleWatchAssetERC20)
+      sandbox.assert.notCalled(stubNext)
+      assert.deepEqual(res, {})
+    })
+    it('should trigger handle add asset if type supported', async function () {
+      const asy = {next: () => {}, end: () => {}}
+      req.method = 'metamask_watchAsset'
+      req.params.type = 'ERC20'
+      await preferencesController.requestWatchAsset(req, res, asy.next, asy.end)
+      sandbox.assert.called(stubHandleWatchAssetERC20)
+    })
+  })
+
+  describe('on watchAsset of type ERC20', function () {
+    var req
+
+    const sandbox = sinon.createSandbox()
+    beforeEach(() => {
+      req = {params: {type: 'ERC20'}}
+    })
+    after(() => {
+      sandbox.restore()
+    })
+
+    it('should add suggested token', async function () {
+      const address = '0xabcdef1234567'
+      const symbol = 'ABBR'
+      const decimals = 5
+      const image = 'someimage'
+      req.params.options = { address, symbol, decimals, image }
+
+      sandbox.stub(preferencesController, '_validateERC20AssetParams').returns(true)
+      preferencesController.showWatchAssetUi = async () => {}
+
+      await preferencesController._handleWatchAssetERC20(req.params.options)
+      const suggested = preferencesController.getSuggestedTokens()
+      assert.equal(Object.keys(suggested).length, 1, `one token added ${Object.keys(suggested)}`)
+
+      assert.equal(suggested[address].address, address, 'set address correctly')
+      assert.equal(suggested[address].symbol, symbol, 'set symbol correctly')
+      assert.equal(suggested[address].decimals, decimals, 'set decimals correctly')
+      assert.equal(suggested[address].image, image, 'set image correctly')
+    })
+
+    it('should add token correctly if user confirms', async function () {
+      const address = '0xabcdef1234567'
+      const symbol = 'ABBR'
+      const decimals = 5
+      const image = 'someimage'
+      req.params.options = { address, symbol, decimals, image }
+
+      sandbox.stub(preferencesController, '_validateERC20AssetParams').returns(true)
+      preferencesController.showWatchAssetUi = async () => {
+        await preferencesController.addToken(address, symbol, decimals, image)
+      }
+
+      await preferencesController._handleWatchAssetERC20(req.params.options)
+      const tokens = preferencesController.getTokens()
+      assert.equal(tokens.length, 1, `one token added`)
+      const added = tokens[0]
+      assert.equal(added.address, address, 'set address correctly')
+      assert.equal(added.symbol, symbol, 'set symbol correctly')
+      assert.equal(added.decimals, decimals, 'set decimals correctly')
+
+      const assetImages = preferencesController.getAssetImages()
+      assert.ok(assetImages[address], `set image correctly`)
+    })
+  })
 })
 
diff --git a/ui/app/actions.js b/ui/app/actions.js
index 6bcc64e17..870ba42be 100644
--- a/ui/app/actions.js
+++ b/ui/app/actions.js
@@ -227,11 +227,14 @@ var actions = {
   SET_PROVIDER_TYPE: 'SET_PROVIDER_TYPE',
   showConfigPage,
   SHOW_ADD_TOKEN_PAGE: 'SHOW_ADD_TOKEN_PAGE',
+  SHOW_ADD_SUGGESTED_TOKEN_PAGE: 'SHOW_ADD_SUGGESTED_TOKEN_PAGE',
   showAddTokenPage,
+  showAddSuggestedTokenPage,
   addToken,
   addTokens,
   removeToken,
   updateTokens,
+  removeSuggestedTokens,
   UPDATE_TOKENS: 'UPDATE_TOKENS',
   setRpcTarget: setRpcTarget,
   setProviderType: setProviderType,
@@ -1589,11 +1592,18 @@ function showAddTokenPage (transitionForward = true) {
   }
 }
 
-function addToken (address, symbol, decimals) {
+function showAddSuggestedTokenPage (transitionForward = true) {
+  return {
+    type: actions.SHOW_ADD_SUGGESTED_TOKEN_PAGE,
+    value: transitionForward,
+  }
+}
+
+function addToken (address, symbol, decimals, image) {
   return (dispatch) => {
     dispatch(actions.showLoadingIndication())
     return new Promise((resolve, reject) => {
-      background.addToken(address, symbol, decimals, (err, tokens) => {
+      background.addToken(address, symbol, decimals, image, (err, tokens) => {
         dispatch(actions.hideLoadingIndication())
         if (err) {
           dispatch(actions.displayWarning(err.message))
@@ -1643,6 +1653,27 @@ function addTokens (tokens) {
   }
 }
 
+function removeSuggestedTokens () {
+  return (dispatch) => {
+    dispatch(actions.showLoadingIndication())
+    return new Promise((resolve, reject) => {
+      background.removeSuggestedTokens((err, suggestedTokens) => {
+        dispatch(actions.hideLoadingIndication())
+        if (err) {
+          dispatch(actions.displayWarning(err.message))
+        }
+        dispatch(actions.clearPendingTokens())
+        if (global.METAMASK_UI_TYPE === ENVIRONMENT_TYPE_NOTIFICATION) {
+          return global.platform.closeCurrentWindow()
+        }
+        resolve(suggestedTokens)
+      })
+    })
+    .then(() => updateMetamaskStateFromBackground())
+    .then(suggestedTokens => dispatch(actions.updateMetamaskState({...suggestedTokens})))
+  }
+}
+
 function updateTokens (newTokens) {
   return {
     type: actions.UPDATE_TOKENS,
@@ -1650,6 +1681,12 @@ function updateTokens (newTokens) {
   }
 }
 
+function clearPendingTokens () {
+  return {
+    type: actions.CLEAR_PENDING_TOKENS,
+  }
+}
+
 function goBackToInitView () {
   return {
     type: actions.BACK_TO_INIT_MENU,
@@ -2310,9 +2347,3 @@ function setPendingTokens (pendingTokens) {
     payload: tokens,
   }
 }
-
-function clearPendingTokens () {
-  return {
-    type: actions.CLEAR_PENDING_TOKENS,
-  }
-}
diff --git a/ui/app/app.js b/ui/app/app.js
index f8e9a14db..e0bdac359 100644
--- a/ui/app/app.js
+++ b/ui/app/app.js
@@ -26,6 +26,7 @@ const RestoreVaultPage = require('./components/pages/keychains/restore-vault').d
 const RevealSeedConfirmation = require('./components/pages/keychains/reveal-seed')
 const AddTokenPage = require('./components/pages/add-token')
 const ConfirmAddTokenPage = require('./components/pages/confirm-add-token')
+const ConfirmAddSuggestedTokenPage = require('./components/pages/confirm-add-suggested-token')
 const CreateAccountPage = require('./components/pages/create-account')
 const NoticeScreen = require('./components/pages/notice')
 
@@ -51,6 +52,7 @@ const {
   RESTORE_VAULT_ROUTE,
   ADD_TOKEN_ROUTE,
   CONFIRM_ADD_TOKEN_ROUTE,
+  CONFIRM_ADD_SUGGESTED_TOKEN_ROUTE,
   NEW_ACCOUNT_ROUTE,
   SEND_ROUTE,
   CONFIRM_TRANSACTION_ROUTE,
@@ -85,6 +87,7 @@ class App extends Component {
         h(Authenticated, { path: SEND_ROUTE, exact, component: SendTransactionScreen }),
         h(Authenticated, { path: ADD_TOKEN_ROUTE, exact, component: AddTokenPage }),
         h(Authenticated, { path: CONFIRM_ADD_TOKEN_ROUTE, exact, component: ConfirmAddTokenPage }),
+        h(Authenticated, { path: CONFIRM_ADD_SUGGESTED_TOKEN_ROUTE, exact, component: ConfirmAddSuggestedTokenPage }),
         h(Authenticated, { path: NEW_ACCOUNT_ROUTE, component: CreateAccountPage }),
         h(Authenticated, { path: DEFAULT_ROUTE, exact, component: Home }),
       ])
diff --git a/ui/app/components/balance-component.js b/ui/app/components/balance-component.js
index 329d8b8e9..753a27b06 100644
--- a/ui/app/components/balance-component.js
+++ b/ui/app/components/balance-component.js
@@ -21,6 +21,7 @@ function mapStateToProps (state) {
     network,
     conversionRate: state.metamask.conversionRate,
     currentCurrency: state.metamask.currentCurrency,
+    assetImages: state.metamask.assetImages,
   }
 }
 
@@ -31,7 +32,9 @@ function BalanceComponent () {
 
 BalanceComponent.prototype.render = function () {
   const props = this.props
-  const { token, network } = props
+  const { token, network, assetImages } = props
+  const address = token && token.address
+  const image = assetImages && address ? assetImages[token.address] : undefined
 
   return h('div.balance-container', {}, [
 
@@ -42,8 +45,9 @@ BalanceComponent.prototype.render = function () {
     // }),
     h(Identicon, {
       diameter: 50,
-      address: token && token.address,
+      address,
       network,
+      image,
     }),
 
     token ? this.renderTokenBalance() : this.renderBalance(),
diff --git a/ui/app/components/identicon.js b/ui/app/components/identicon.js
index 80db2b8e9..076e65b81 100644
--- a/ui/app/components/identicon.js
+++ b/ui/app/components/identicon.js
@@ -26,37 +26,42 @@ function mapStateToProps (state) {
 
 IdenticonComponent.prototype.render = function () {
   var props = this.props
-  const { className = '', address } = props
+  const { className = '', address, image } = props
   var diameter = props.diameter || this.defaultDiameter
-
-  return address
-    ? (
-      h('div', {
-        className: `${className} identicon`,
-        key: 'identicon-' + address,
-        style: {
-          display: 'flex',
-          flexShrink: 0,
-          alignItems: 'center',
-          justifyContent: 'center',
-          height: diameter,
-          width: diameter,
-          borderRadius: diameter / 2,
-          overflow: 'hidden',
-        },
-      })
-    )
-    : (
-      h('img', {
-        className: `${className} balance-icon`,
-        src: './images/eth_logo.svg',
-        style: {
-          height: diameter,
-          width: diameter,
-          borderRadius: diameter / 2,
-        },
-      })
-    )
+  const style = {
+    height: diameter,
+    width: diameter,
+    borderRadius: diameter / 2,
+  }
+  if (image) {
+    return h('img', {
+      className: `${className} identicon`,
+      src: image,
+      style: {
+        ...style,
+      },
+    })
+  } else if (address) {
+    return h('div', {
+      className: `${className} identicon`,
+      key: 'identicon-' + address,
+      style: {
+        display: 'flex',
+        flexShrink: 0,
+        alignItems: 'center',
+        justifyContent: 'center',
+        ...style,
+        overflow: 'hidden',
+      },
+    })
+  } else {
+    return h('img.balance-icon', {
+      src: './images/eth_logo.svg',
+      style: {
+        ...style,
+      },
+    })
+  }
 }
 
 IdenticonComponent.prototype.componentDidMount = function () {
diff --git a/ui/app/components/modals/hide-token-confirmation-modal.js b/ui/app/components/modals/hide-token-confirmation-modal.js
index 1518fa9a0..fb38516d3 100644
--- a/ui/app/components/modals/hide-token-confirmation-modal.js
+++ b/ui/app/components/modals/hide-token-confirmation-modal.js
@@ -10,6 +10,7 @@ function mapStateToProps (state) {
   return {
     network: state.metamask.network,
     token: state.appState.modal.modalState.props.token,
+    assetImages: state.metamask.assetImages,
   }
 }
 
@@ -40,8 +41,9 @@ module.exports = connect(mapStateToProps, mapDispatchToProps)(HideTokenConfirmat
 
 
 HideTokenConfirmationModal.prototype.render = function () {
-  const { token, network, hideToken, hideModal } = this.props
+  const { token, network, hideToken, hideModal, assetImages } = this.props
   const { symbol, address } = token
+  const image = assetImages[address]
 
   return h('div.hide-token-confirmation', {}, [
     h('div.hide-token-confirmation__container', {
@@ -55,6 +57,7 @@ HideTokenConfirmationModal.prototype.render = function () {
         diameter: 45,
         address,
         network,
+        image,
       }),
 
       h('div.hide-token-confirmation__symbol', {}, symbol),
diff --git a/ui/app/components/pages/confirm-add-suggested-token/confirm-add-suggested-token.component.js b/ui/app/components/pages/confirm-add-suggested-token/confirm-add-suggested-token.component.js
new file mode 100644
index 000000000..c24e1e0ea
--- /dev/null
+++ b/ui/app/components/pages/confirm-add-suggested-token/confirm-add-suggested-token.component.js
@@ -0,0 +1,126 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+import { DEFAULT_ROUTE } from '../../../routes'
+import Button from '../../button'
+import Identicon from '../../../components/identicon'
+import TokenBalance from '../../token-balance'
+
+export default class ConfirmAddSuggestedToken extends Component {
+  static contextTypes = {
+    t: PropTypes.func,
+  }
+
+  static propTypes = {
+    history: PropTypes.object,
+    clearPendingTokens: PropTypes.func,
+    addToken: PropTypes.func,
+    pendingTokens: PropTypes.object,
+    removeSuggestedTokens: PropTypes.func,
+  }
+
+  componentDidMount () {
+    const { pendingTokens = {}, history } = this.props
+
+    if (Object.keys(pendingTokens).length === 0) {
+      history.push(DEFAULT_ROUTE)
+    }
+  }
+
+  getTokenName (name, symbol) {
+    return typeof name === 'undefined'
+      ? symbol
+      : `${name} (${symbol})`
+  }
+
+  render () {
+    const { addToken, pendingTokens, removeSuggestedTokens, history } = this.props
+    const pendingTokenKey = Object.keys(pendingTokens)[0]
+    const pendingToken = pendingTokens[pendingTokenKey]
+
+    return (
+      <div className="page-container">
+        <div className="page-container__header">
+          <div className="page-container__title">
+            { this.context.t('addSuggestedTokens') }
+          </div>
+          <div className="page-container__subtitle">
+            { this.context.t('likeToAddTokens') }
+          </div>
+        </div>
+        <div className="page-container__content">
+          <div className="confirm-add-token">
+            <div className="confirm-add-token__header">
+              <div className="confirm-add-token__token">
+                { this.context.t('token') }
+              </div>
+              <div className="confirm-add-token__balance">
+                { this.context.t('balance') }
+              </div>
+            </div>
+            <div className="confirm-add-token__token-list">
+              {
+                Object.entries(pendingTokens)
+                  .map(([ address, token ]) => {
+                    const { name, symbol, image } = token
+
+                    return (
+                      <div
+                        className="confirm-add-token__token-list-item"
+                        key={address}
+                      >
+                        <div className="confirm-add-token__token confirm-add-token__data">
+                          <Identicon
+                            className="confirm-add-token__token-icon"
+                            diameter={48}
+                            address={address}
+                            image={image}
+                          />
+                          <div className="confirm-add-token__name">
+                            { this.getTokenName(name, symbol) }
+                          </div>
+                        </div>
+                        <div className="confirm-add-token__balance">
+                          <TokenBalance token={token} />
+                        </div>
+                      </div>
+                    )
+                })
+              }
+            </div>
+          </div>
+        </div>
+        <div className="page-container__footer">
+          <Button
+            type="default"
+            large
+            className="page-container__footer-button"
+            onClick={() => {
+              removeSuggestedTokens()
+              .then(() => {
+                history.push(DEFAULT_ROUTE)
+              })
+          }}
+          >
+            { this.context.t('cancel') }
+          </Button>
+          <Button
+            type="primary"
+            large
+            className="page-container__footer-button"
+            onClick={() => {
+              addToken(pendingToken)
+                .then(() => {
+                  removeSuggestedTokens()
+                  .then(() => {
+                    history.push(DEFAULT_ROUTE)
+                  })
+                })
+            }}
+          >
+            { this.context.t('addToken') }
+          </Button>
+        </div>
+      </div>
+    )
+  }
+}
diff --git a/ui/app/components/pages/confirm-add-suggested-token/confirm-add-suggested-token.container.js b/ui/app/components/pages/confirm-add-suggested-token/confirm-add-suggested-token.container.js
new file mode 100644
index 000000000..1f2737e52
--- /dev/null
+++ b/ui/app/components/pages/confirm-add-suggested-token/confirm-add-suggested-token.container.js
@@ -0,0 +1,29 @@
+import { connect } from 'react-redux'
+import { compose } from 'recompose'
+import ConfirmAddSuggestedToken from './confirm-add-suggested-token.component'
+import { withRouter } from 'react-router-dom'
+
+const extend = require('xtend')
+
+const { addToken, removeSuggestedTokens } = require('../../../actions')
+
+const mapStateToProps = ({ metamask }) => {
+  const { pendingTokens, suggestedTokens } = metamask
+  const params = extend(pendingTokens, suggestedTokens)
+
+  return {
+    pendingTokens: params,
+  }
+}
+
+const mapDispatchToProps = dispatch => {
+  return {
+    addToken: ({address, symbol, decimals, image}) => dispatch(addToken(address, symbol, decimals, image)),
+    removeSuggestedTokens: () => dispatch(removeSuggestedTokens()),
+  }
+}
+
+export default compose(
+  withRouter,
+  connect(mapStateToProps, mapDispatchToProps)
+)(ConfirmAddSuggestedToken)
diff --git a/ui/app/components/pages/confirm-add-suggested-token/index.js b/ui/app/components/pages/confirm-add-suggested-token/index.js
new file mode 100644
index 000000000..2ca56b43c
--- /dev/null
+++ b/ui/app/components/pages/confirm-add-suggested-token/index.js
@@ -0,0 +1,2 @@
+import ConfirmAddSuggestedToken from './confirm-add-suggested-token.container'
+module.exports = ConfirmAddSuggestedToken
diff --git a/ui/app/components/pages/home/home.component.js b/ui/app/components/pages/home/home.component.js
index 404f42361..d3c71c4f6 100644
--- a/ui/app/components/pages/home/home.component.js
+++ b/ui/app/components/pages/home/home.component.js
@@ -9,6 +9,7 @@ import {
   RESTORE_VAULT_ROUTE,
   CONFIRM_TRANSACTION_ROUTE,
   NOTICE_ROUTE,
+  CONFIRM_ADD_SUGGESTED_TOKEN_ROUTE,
 } from '../../../routes'
 
 export default class Home extends PureComponent {
@@ -18,11 +19,21 @@ export default class Home extends PureComponent {
     lostAccounts: PropTypes.array,
     forgottenPassword: PropTypes.bool,
     seedWords: PropTypes.string,
+    suggestedTokens: PropTypes.object,
     unconfirmedTransactionsCount: PropTypes.number,
   }
 
   componentDidMount () {
-    const { history, unconfirmedTransactionsCount = 0 } = this.props
+    const {
+      history,
+      suggestedTokens = {},
+      unconfirmedTransactionsCount = 0,
+    } = this.props
+
+    // suggested new tokens
+    if (Object.keys(suggestedTokens).length > 0) {
+        history.push(CONFIRM_ADD_SUGGESTED_TOKEN_ROUTE)
+    }
 
     if (unconfirmedTransactionsCount > 0) {
       history.push(CONFIRM_TRANSACTION_ROUTE)
diff --git a/ui/app/components/pages/home/home.container.js b/ui/app/components/pages/home/home.container.js
index b0e34f832..58001df6b 100644
--- a/ui/app/components/pages/home/home.container.js
+++ b/ui/app/components/pages/home/home.container.js
@@ -10,6 +10,7 @@ const mapStateToProps = state => {
     noActiveNotices,
     lostAccounts,
     seedWords,
+    suggestedTokens,
   } = metamask
   const { forgottenPassword } = appState
 
@@ -18,6 +19,7 @@ const mapStateToProps = state => {
     lostAccounts,
     forgottenPassword,
     seedWords,
+    suggestedTokens,
     unconfirmedTransactionsCount: unconfirmedTransactionsCountSelector(state),
   }
 }
diff --git a/ui/app/components/token-cell.js b/ui/app/components/token-cell.js
index 4100d76a5..58a30228d 100644
--- a/ui/app/components/token-cell.js
+++ b/ui/app/components/token-cell.js
@@ -56,8 +56,8 @@ TokenCell.prototype.render = function () {
     sidebarOpen,
     currentCurrency,
     // userAddress,
+    image,
   } = props
-
   let currentTokenToFiatRate
   let currentTokenInFiat
   let formattedFiat = ''
@@ -97,6 +97,7 @@ TokenCell.prototype.render = function () {
         diameter: 50,
         address,
         network,
+        image,
       }),
 
       h('div.token-list-item__balance-ellipsis', null, [
diff --git a/ui/app/components/token-list.js b/ui/app/components/token-list.js
index 42351cf89..6a88f30bf 100644
--- a/ui/app/components/token-list.js
+++ b/ui/app/components/token-list.js
@@ -13,6 +13,7 @@ function mapStateToProps (state) {
     network: state.metamask.network,
     tokens: state.metamask.tokens,
     userAddress: selectors.getSelectedAddress(state),
+    assetImages: state.metamask.assetImages,
   }
 }
 
@@ -44,10 +45,9 @@ function TokenList () {
 }
 
 TokenList.prototype.render = function () {
-  const { userAddress } = this.props
+  const { userAddress, assetImages } = this.props
   const state = this.state
   const { tokens, isLoading, error } = state
-
   if (isLoading) {
     return this.message(this.context.t('loadingTokens'))
   }
@@ -74,7 +74,10 @@ TokenList.prototype.render = function () {
     ])
   }
 
-  return h('div', tokens.map((tokenData) => h(TokenCell, tokenData)))
+  return h('div', tokens.map((tokenData) => {
+    tokenData.image = assetImages[tokenData.address]
+    return h(TokenCell, tokenData)
+  }))
 
 }
 
diff --git a/ui/app/reducers/app.js b/ui/app/reducers/app.js
index c246e7904..7be9b8d40 100644
--- a/ui/app/reducers/app.js
+++ b/ui/app/reducers/app.js
@@ -209,6 +209,15 @@ function reduceApp (state, action) {
         transForward: action.value,
       })
 
+    case actions.SHOW_ADD_SUGGESTED_TOKEN_PAGE:
+      return extend(appState, {
+        currentView: {
+          name: 'add-suggested-token',
+          context: appState.currentView.context,
+        },
+        transForward: action.value,
+      })
+
     case actions.SHOW_IMPORT_PAGE:
       return extend(appState, {
         currentView: {
diff --git a/ui/app/routes.js b/ui/app/routes.js
index f6b2a7a55..76afed5db 100644
--- a/ui/app/routes.js
+++ b/ui/app/routes.js
@@ -7,6 +7,7 @@ const CONFIRM_SEED_ROUTE = '/confirm-seed'
 const RESTORE_VAULT_ROUTE = '/restore-vault'
 const ADD_TOKEN_ROUTE = '/add-token'
 const CONFIRM_ADD_TOKEN_ROUTE = '/confirm-add-token'
+const CONFIRM_ADD_SUGGESTED_TOKEN_ROUTE = '/confirm-add-suggested-token'
 const NEW_ACCOUNT_ROUTE = '/new-account'
 const IMPORT_ACCOUNT_ROUTE = '/new-account/import'
 const CONNECT_HARDWARE_ROUTE = '/new-account/connect'
@@ -41,6 +42,7 @@ module.exports = {
   RESTORE_VAULT_ROUTE,
   ADD_TOKEN_ROUTE,
   CONFIRM_ADD_TOKEN_ROUTE,
+  CONFIRM_ADD_SUGGESTED_TOKEN_ROUTE,
   NEW_ACCOUNT_ROUTE,
   IMPORT_ACCOUNT_ROUTE,
   CONNECT_HARDWARE_ROUTE,