Most Popular Extensions
Find Image Copies Requires Restart
The Find Image Copies Firefox extension helps you quickly find image copies. Search for image copies straight from the right-click menu in any website.
Macro Template is to replace mail templates with macros for date formatting.
View pretty CSV directly from within Firefox and Thunderbird.
XDM Hook for Linux & Mac OS X Requires Restart
XDM integration module for Firefox on Linux and Mac
Slashy Requires Restart
Fixes Windows backslash file separators in links and images and other types.
Set most common Firefox user-agent and window.navigator values.
Sea Fox Requires Restart
Transform SeaMonkey into Firefox 3.x
Displays startup timings
A powerful ad blocker that blocks ALL ads but ads from publishers who shares revenues with targets YOU choose.
Lock The Text Requires Restart
Encrypt your text data in browser before you submit it to a network
Download every YouTube video you want and you can download them as Full HD MP4, FLV, 3GP, MP3, M4A and AAC formats.
This extension to download audio and video from popular video hosting YouTube. To download the available formats mp4, webm, mp4a, mp3.
ChatZilla ru-RU Requires Restart
Russian translation of ChatZilla
Want to change from one language to another? Zing! and the locale is switched.
Minimeter Requires Restart
Monitor your provider's upload/download usage meter.
Not maintained anymore, looking for a developer, contact me if you're interested.
Darkens the background of the page
Displays a menu that allows you to open the option/preference window for any add-on that has one.
LastColour Requires Restart
Colour your text to the "last-picked" colour you chose in the colour-picker. Now you don't have to use the colour picker every time.
GameFOX Requires Restart
Enhances the GameFAQs message boards.