Reinstates the extensions.checkCompatibility preference without respect to the current application version.
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/
YouTube Center contains all kind of different useful functions which makes your visit on YouTube much more entertaining.
PrintPDF Requires Restart
This allows users on Windows and Linux to print web pages to PDF. Mac users you already have this functionality.
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/
Tampermonkey is the world's most popular userscript manager.
Download APK files from Google Play Store (Android Market) for free, from your browser.
Web2PDF Converter Requires Restart
Web page to PDF conversion tool
Show My Password Requires Restart
You are annoyed because your password fields are always scrambled though nobody else but you can see the screen? This most advanced unscrambling addon shows your passwords in readable letters, while being fully customizable to fit your needs.
Reload Plus Featured
Supercharge your reload button and hotkeys!
Minimize On Start and Close Requires Restart
A remake of the MinimizeToTray-extension made to fit the Windows 7 taskbar. Instead of minimize the window to the tray it minimize it to the taskbar. It can minimize on startup, when the window is closed and/or when the esc key is pressed.
Diagnostics tool for Adblock Plus, provides some insight into internal processes of Adblock Plus.
QuickNote Requires Restart
A simple note-taking extension.
Save any page as PDF
Grab and Drag Requires Restart
Enables Adobe Acrobat-style grab and drag scrolling, Flick gestures, and Momentum scrolling in Firefox. Useful for (older) pen or touchscreen-based devices for which these gestures are not natively supported. Not useful on Windows 8 touch devices.
"Restart" menu and button, with configurable shortcut key.
Memory Restart Requires Restart
Gives you a quick way to restart if memory usage is too high.
Nightly Tester Tools Requires Restart
Useful tools for the nightly tester.
YouTube with more freedom.
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.