Tab Groups Featured
Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.
Menu Wizard Requires Restart Featured
Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey
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.
Shut down the lights on YouTube.
YouTube No Buffer (Stop Autoplaying) Featured
A bulletproof approach to prevent YouTube from buffering videos
Reader is the ultimate Reader tool for Firefox.
Extended Cookie Manager - Keep only wanted cookies.
Right-click on a section of text and click on Translate icon next to it to translate or listen it to your language.
Adblock Plus Featured
Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Greasemonkey Requires Restart Featured
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
NoScript Security Suite Requires Restart Featured
The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
Gmail™ Notifier (restartless) Featured
Multiple account (or label) Gmail notifier (without storing passwords)
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
Now Available for: Firefox, Thunderbird and SeaMonkey!
Tab notifier Compatible with Firefox 57+ Featured
Enables desktop notifications like in Chrome (e.g. Gmail, imo.im) and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!
Tool for managing the default action when you click a "mailto:" link. Specializing in sharing details for Webmail services.
YouTube High Definition Featured
YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.
Proxy Switcher Featured
Access to the complete Firefox's proxy settings right from a toolbar panel
This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.