You can save webpages as a Web Application. This will add a link to the page to the Activities overview. When you open a Web Application, it is shown in a special type of window without the address bar or the menus.
Open the webpage which you want to save.
Open the menu at the top-right of the window, then
Name your Web Application, then press
You can now launch launch the Web Application from the Activities overview. To search for your application, start typing the name and it will be showin with the other search results.