The Web of Trust (WOT) service add-on aims to make browsing safer by monitoring the sites that users visit and warning when they run into a variety of danger such as scams, malware, and rogue web ...

You can easily block a website on Firefox — but you'll need to download the Block Site extension first.

Mozilla today said it wouldn’t — or couldn’t — pull a “kill switch” to disable the Firesheep add-on that lets anyone steal log-on and account access information to Facebook, Twitter and other major ...

Over the past two weeks, Mozilla's add-on review team has banned 197 Firefox add-ons that were caught executing malicious code, stealing user data, or using obfuscation to hide their source code. The ...

Mozilla has now unblocked a Microsoft add-on thought to pose a danger due to a software vulnerability, but a second add-on remains blocked, the organization said on Sunday. Microsoft has confirmed ...

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 ...

Mozilla Firefox users were surprised to see a mysterious add-on suddenly appear on their browsers, raising fears that it was the work of hackers. The add-on was later discovered to really be related ...

Mozilla had a little something in mind for its users: an add-on called Looking Glass that remotely installs itself on Firefox and reads, "MY REALITY IS JUST DIFFERENT THAN YOURS." That marketing stunt ...

We're thrilled to announce the return of GamesBeat Next, hosted in San Francisco this October, where we will explore the theme of "Playing the Edge." Apply to speak here and learn more about ...

Firefox's flexible XUL framework and sophisticated add-on system offer a rich platform for enhancing browser functionality. Mozilla Labs takes advantage of this capability as it experiments with new ...