Firefox extensions expand the functionality of the browser with new features not available in the default program. Below are the best Firefox add-ons (aka extensions) that cover security and privacy, ...

Firefox only: Good news for Firefox 3 beta testers—Lifehacker's home-compiled Better YouTube and Better GReader extensions are now approved and hosted at Mozilla's official Add-ons site. That means ...

Firefox 63 has been out for less than a month and it won't be long until the next version of Mozilla's browser hits the mainstream. Slated for release on December 11, Firefox 64 will include a number ...

If your Firefox add-ons were borked over the weekend, you’re not alone. Late on Friday, many Firefox users found that many extensions were suddenly useless or impossible to install after Mozilla ...

Mozilla Corp. will relaunch its popular Firefox add-on site Monday by culling the several thousand extensions listed for its open-source browser to just a couple of hundred. The move is part of a ...

Although +Google Chrome has been getting many deserved kudos for its innovations and speed, many people still prefer to use +Mozilla Firefox as their primary browser. If you’re a dedicated Google+ ...

Mozilla Firefox extensions created by Avast have been removed from the available add-ons listed within the browser's extensions management UI and Firefox website. GHacks reports that existing add-ons, ...

Did you just open Firefox only to find all of your extensions disabled and/or otherwise not working? You’re not alone, and it’s nothing you did. Reports are pouring in of a glitch that has ...