Join WebEx meetings using Firefox ™
Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.
Greasemonkey Requires Restart
Tampermonkey is the world's most popular userscript manager.
Selenium IDE Button Requires Restart
Just one simple toolbar button to open Selenium IDE. You need to have installed Selenium IDE: http://seleniumhq.org/projects/ide/
EPUBReader Compatible with Firefox 57+ Featured
With EPUBReader you can read ePub files just in Firefox. No additional software needed!
Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.
Flashblock Requires Restart
Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on...
QuickNote Requires Restart
A simple note-taking extension.
Save as PDF Requires Restart
Lets you download web pages as PDF in one click.
Redirects your Browser to the newest version of the javadocs.
Example: https://docs.oracle.com/javase/7/docs/api/java/lang/String.html -> https://docs.oracle.com/javase/9/docs/api/java/lang/String.html
Makes YouTube stream H.264 videos instead of VP8/VP9 videos
UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.
Enables the Google Chrome Store for Firefox. Point and click to install Chrome extensions straight into Firefox.
Enable selecting, copying and right clicking on pages that restrict them.
LeechBlock Requires Restart
LeechBlock is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
Translate the whole entire page or just a selection using Google Translate.
Help make Firefox better. The Add-on Compatibility Reporter enables you to report if the Firefox add-ons that you're using are working properly (legacy add-ons only).