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.
Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user.
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).
Auto Form Requires Restart
Copy/Paste all fields from a web form in one click.
PrintPDF Requires Restart
This allows users on Windows and Linux to print web pages to PDF. Mac users you already have this functionality.
Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.
Download APK files from Google Play Store (Android Market) for free, from your browser.
PlayFlash 32bit Requires Restart
Flash player plugin - unofficial xpi repack for 32bit browsers.
Use when official plugin installer is not suitable.
All binary files are copyrighted by their authors and distributed for free.
The Hacker's Browser. Vimium provides keyboard shortcuts for navigation and control in the spirit of Vim.
This is a port of the popular Chrome extension to Firefox.
Most stuff works, but the port to Firefox remains a work in progress.
Translate the whole entire page or just a selection using Google Translate.
Supercharge your reload button and hotkeys!
Nightly Tester Tools (NTT) is an add-on for aiding testers of Nightly builds of Mozilla apps including Firefox.
Reinstates the extensions.checkCompatibility preference without respect to the current application version.
ProfileSwitcher Requires Restart
It adds some options to launch easily other profiles and the Profile Manager.
Secure Login Requires Restart
Secure Login is an extension for Firefox integrated password manager.
For Firefox > 51, try my WebExtension implementation: https://addons.mozilla.org/en-US/firefox/addon/secure-login-webextension/
RAMBack Requires Restart
RAMBack will cause Firefox to issue an internal notification to free up memory that is otherwise held for performance purposes. Additional items will be hooked into this notification in the future.
Low Quality Flash Requires Restart
Sets Flash objects to "Low Quality" to improve performance on slower platforms (i.e. older computers, netbooks, and Firefox Mobile).
PlayFlash 64bit Requires Restart
Flash player plugin - unofficial xpi repack for 64bit browsers. Use when official plugin installer is not suitable. All binary files are copyrighted by their authors and distributed for free.
Scans for local file system URIs (file:///) on any page. Click on the added icon to open the local link with the system's file manager. Alternatively, select any text that forms a path (e.g. "C:\tmp\cow 1.txt") and use the context menu.
"Restart" menu and button, with configurable shortcut key.