Firefox 50 landed in Developer Edition this week, so we have another update on WebExtensions for you!Please use the WebExtensions API for any new add-on development, and consider porting your existing add-ons as soon as possible. It’s also a great time to port because WebExtensions is compatible with multiprocess Firefox, which began rolling out in Firefox 48 to people without add-ons installed. W
![WebExtensions in Firefox 50](https://cdn-ak-scissors.b.st-hatena.com/image/square/d47ff3e121593f6d30acd587b117a4662e1909fe/height=288;version=1;width=512/https%3A%2F%2Fblog.mozilla.org%2Faddons%2Fwp-content%2Fthemes%2FOneMozilla%2Fimg%2Fmozilla-wordmark.png)