Most Popular Extensions
A Mozilla Shield Study add-on for recommending add-ons based on domains that the user visits
REAltitude Screen Sharing Plugin
Anime/Japanese Radio powered by Odyssey Radio!
Displays the alt text below the XKCD comic just like in the mobile version of XKCD.com. Click (alt-text) to display the text.
Preferences changed without user notice are shown in a pop-up window and ask them, whether to save the new changes or discard them (using authentication only user can save the new changes). If user clicks cancel, then old setting values are retained.
Mines Requires Restart
The classic game of Minesweeper recreated for Firefox. Includes several interesting variations, such as games with hexagonal rather than square tiles, games with multiple mines in some tiles, and an option to have the edge of the grid be free of...
Molybdenum Requires Restart
web ui testing made easy. Capture and replay, modularized and maintainable tests with bricks, data binding with external files, reporting with simple rerun possibilities, test other media than HTML like PDF with helper applications. Integration into ...
Gb2Big Requires Restart
Gb2Big is a handy translator between simplified and traditional Chinese.
Use CN Flag for Simplified Chinese
Use HK Flag for Traditional Chinese
Use UN Flag for Online Proxy Service
To activate this add-on:
1. Right click on the toolbar
2. Select "Cu...
SB2 Requires Restart
This plugin is no longer supported. It has been replaced by the M86Security Secure Browsing plugin. Please download it instead of this one, and continue to be protected by M86Security's advanced real-time page inspection technology.
remove all facebook ads Requires Restart
Removes any and all ads from Facebook.
Crossbrowser Requires Restart
Open a website in the Internet Explorer, Safari, Chrome and Opera with one click.
View Tab Requires Restart
Thumbnail Preview of Tabs on mouse-over
AdFrame Requires Restart
AdFrame – is a tool for Advertising people that contains different links to professional resources, news and events feeds from Ad industry, and also convenient Ad search panel.
KidZui K2 Requires Restart
Get the award-winning kids' browser stuffed with millions of kid-friendly games, websites, and videos. All reviewed by parents and teachers.
This add-on is not compatible with your version of Firefox because of the following:
- Add-on uses binary components.
Display some information about your past search behavior
Sticky Fields Requires Restart
Makes form elements automatically populate with a "remembered" value.
Add a 30-second delay when loading certain time-wasting websites.
Woot Watcher Plus Requires Restart
Woot Watcher Plus monitors the Woot! web site, and keeps you updated with the current item, price, and if it is sold out.
Calendars Requires Restart
Calendars keeps you organised by providing a convenient pop-up calendar that merges your Google Calendar and your Facebook events. It notifies you when events are coming up, and lets you create new events from anywhere.