


Increase stability by making it less likely that changes to Firefox break an add-on: currently, extensions are highly intertwined with the Firefox system, so updates to the browser itself often broken extensions.Make it easier to develop cross-browser extensions: the goal is to make it easy to write extensions that run without any (or minimal) modifications on any major browser, and the WebExtensions framework is very similar to the one used to develop browser extensions for Opera and Google’s Chrome.Mozilla’s move to its WebExtensions platform is designed to: Alternatives to the Most Popular Add-Ons.How to Find Add-Ons That are Compatible with Firefox 57+.What the Switch to WebExtensions Means for You.
