Over the coming year, Firefox will be putting the finishing touches on a plan it set in motion in 2015, which was to replace the aging Add-ons API with a new system called WebExtensions, based on the ...

An expired certificate on the Mozilla Add-ons infrastructure is disabling Firefox add-ons for millions of users, and is also preventing users from re-activating or (re-)installing extensions. The ...

On November 14 Mozilla will take the biggest gamble in its long history when the organization will ship Firefox 57, the first version of its browser that will stop supporting legacy Firefox add-ons.

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The maker of the uBlock Origin Lite extension has ended its support in the Firefox Add-ons Store, citing a "nonsensical and hostile" review process. If you use Firefox and the uBlock Origin Lite ...

The misbehaving Firefox add-ons were misusing an API that controls how Firefox connects to the internet. Mozilla’s Firefox team has blocked add-ons that were abusing the proxy API in order to prevent ...

Firefox Add-ons have long been a major reason of user devotion and now Mozilla has taken Add-ons to the next level with a major upgrade. The Firefox Add-Ons system has been redesigned with a focus on ...

As we all know, the absolute greatest thing about Firefox is its extensibility, so why is it that the Firefox Add-ons window seems to be the only thing I can't get to with a keyboard shortcut? Now ...