Tampermonkey is the world's most popular userscript manager.
Reinstates the extensions.checkCompatibility preference without respect to the current application version.
Copy Plain Text 2 Requires Restart Featured
Copies text without formatting
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/
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/
PrintPDF Requires Restart
This allows users on Windows and Linux to print web pages to PDF. Mac users you already have this functionality.
YouTube Center contains all kind of different useful functions which makes your visit on YouTube much more entertaining.
Save any page as PDF
Download APK files from Google Play Store (Android Market) for free, from your browser.
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.
Web2PDF Converter Requires Restart
Web page to PDF conversion tool
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.
"Restart" menu and button, with configurable shortcut key.
Firefox and Thunderbird extension to manage user preferences and user profile CA certificates using group policy
QuickNote Requires Restart
A simple note-taking extension.
Diagnostics tool for Adblock Plus, provides some insight into internal processes of Adblock Plus.
Memory Restart Requires Restart
Gives you a quick way to restart if memory usage is too high.
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.