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 ...

A newly discovered malware infected multiple Firefox browser add-ons with more than 50,000 downloads combined.

Add-ons in Mozilla Firefox automate a wide variety of tasks and enhance the functionality of the Web browser. Too many Firefox add-ons slow the browser dow, however. Add-ons also occasionally limit ...

Firefox 57 is set to bring the biggest shake-up that Mozilla's browser ecosystem has seen in quite some time, and the simple reason is that a huge number of browser extensions and add-ons are set to ...

As more and more versions of Firefox are released, the compatibility of add-ons is becoming an increasingly worrisome problem for Mozilla. CNET contributor Don Reisinger is a technology columnist who ...

Firefox supports small programs, or plug-ins, that add extra functionality to the browser. These programs are called Add-ons. These programs can add a myriad of features ranging from a new toolbar ...

LastPass works with Firefox thanks to the password encryption company's browser add-on. To get LastPass to work with Firefox, type "about: addons" into the URL bar ...

Kris has been writing about technology for nearly a decade and got their start covering video games at RPG Site before branching out to PC, Android, and general tech coverage. After joining How-To ...

Unwanted ads like pop-ups or pop-unders are windows or advertisements that appear on a Web page without permission. Many times visiting a site will cause them to launch automatically. Mozilla Firefox ...

There are other Firefox-derived browsers out there, including LibreWolf, Floorp, and the Zen Browser with its impressive ...

Firefox isn’t the most popular browser in the world — that honor now goes to Google Chrome — but it still has an ardent following. And after slipping in recent years, it has been on something of a ...