New Tab Tools Featured
Customizes the new tab page. Add more tiles. Add the launcher from Firefox start. Have a background image. Set new tile images and titles. See recently closed tabs. And more...
Disconnect for Facebook™ Featured
Facebook™ Disconnect is an efficient firewall to disconnect third-party websites from accessing to your Facebook.
Tab Memory Usage Featured
Tab Memory Usage displays the amount of memory is used by each tab
Easily download most popular video formats.
An easy-to-use tab reloader with custom reloading time settings for individual tabs
Tile Tabs Requires Restart Featured
Displays tabs in tiled layouts in Firefox. Arrange tiles horizontally, vertically or in a grid. Resize tiles by dragging splitter bars. Tabs and links can be dragged to open in other tiles. Supports multiple tiled layouts. Works with tab groups.
Download YouTube Videos as MP4 Featured
An extension that adds direct links to download YouTube videos as MP4 and FLV. It has a simple interface and it downloads videos directly from YouTube. The extension integrates with YouTube's interface and adds a download button below the player.
Duplicate Tabs Closer Featured
Detects and automatically closes duplicate tabs.
Tool for managing the default action when you click a "mailto:" link. Specializing in sharing details for Webmail services.
User-Agent Switcher Featured
Quickly and easily switch between popular user-agent strings.
Greasemonkey Requires Restart Featured
Classic Toolbar Buttons Featured
'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions.
Beta builds on versions page!
HTTPS Everywhere Requires Restart Featured
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
a powerful tool to translate words or sentences
Capture, Reverse Image Search is a powerful capturing reverse image search tool built on top of TinEye engine.
Emoji Cheatsheet Featured
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook.
Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address
Translator, dictionary and text-to-speech for 103 languages. Select and translate on any page with a shortcut on double-click.
Clean Uninstall Featured
Uninstall an extension and clean its fingerprints (such as stored preferences)