Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.
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
"Dictionary (Google™ Translate) Anywhere" extension provides access to a floating multilingual Google Translate panel on any webpage.
Alter Firefox's built-in privacy settings easily with a toolbar panel.
This extension provides a list to almost all the settings that you may need to alter in order to enhance Firefox's speed.
Tab Memory Usage displays the amount of memory is used by each tab
Capture, Reverse Image Search is a powerful capturing reverse image search tool built on top of TinEye engine.
Easy Screenshot is an easy to use screen capture tool. Simply press one of the context menu items to capture entire or a portion of your screen. WebExtension: https://addons.mozilla.org/en-US/firefox/addon/web-clipper-easy-screenshot/
Tetris is a tile-matching puzzle game.