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 ...

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 ...

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 ...

Many Firefox users around the world are browsing without their usual set of extensions after they suddenly stopped working earlier this evening. The event occurred as the clock rolled over on UTC ...

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 ...

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 ...

Firefox 3 was released just this June, and many Firefox fans believe the new version is clearly the best browser you can get. You can make it even better with free ...

In addition to customizing the buttons on the Firefox toolbar, you can also customize what buttons are displayed in the Firefox menu. This provides easy access to Firefox extensions or other desired ...

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 ...