The master branch works for Chrome and Opera. Firefox needs its own branch because it has different requirements for - browser action items (icons need to be specified) - storage.sync API requires and application ID - can't use script injection. The icon is made by Freepik from www.flaticon.com
ptoonen/ffs_msdn_in_english
Make the Microsoft MSDN developer pages switch to english (en-us).
JavaScriptGPL-3.0