Most Popular Extensions
Search YouTube For This Requires Restart
Right click on selected or a link click search YouTube For Video of in the menu, a new tab will open with the searched text.
This extension to download audio and video from popular video hosting YouTube. To download the available formats mp4, webm, mp4a, mp3.
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.
MonkeyFix Requires Restart
Fixes up numerous SeaMonkey browser interface issues (eg. adding support for popup ALT attributes), as well as adding some handy features for developers and power users (eg. configure source viewer, work online/offline).
bioFOX Requires Restart
Bioinformatics tools on Mozilla based browsers
Help you create element hiding rules for Pan to fight the text ads.
Creates XPI files of extensions you have installed.
EmotiConverter Requires Restart
Post your best emoticons of the easiest and fastest way.
A button that lists all the about pages that exist. Some of these pages are also provided as separate buttons.
WDownloader plugin for Firefox
ChatZilla zh-CN Language Pack Requires Restart
ChatZilla zh-CN language pack for ChatZilla 0.9.92
Use wheel mouse on videos to control video/audio/quality.
Choose flash/HTML5 on YouTube, autopause on background tabs, embedded videos.
And much more!
TaQuilla Requires Restart
Automatic tagging using Bayesian statistics
Page Hacker Revived Requires Restart
Adds a toolbar to edit and format the current page
InlineDisposition Reloaded changes the disposition type of "Content-Disposition" response headers from "attachment" and "file" to "inline"
XPCOMViewer Requires Restart
XPCOMViewer is tiny tool for exploring XPCOM components.
Hide the caption of Firefox
Dictionnaire des synonymes FR Requires Restart
Adds to browser French(FR) synonyms dictionary from package LibreOffice.
This addon adds some Android Debug Bridge access to Firefox. It requires access to the adb/adb.exe executable from the Android SDK.