Extensions
Explore powerful tools and features to customise Firefox and make the browser all your own.
Flagfox
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
100,957 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
156,238 users
Swift Selection Search
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
10,280 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
23,716 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
97,645 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
11,291 users
LeechBlock NG
LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
113,781 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
734,986 users
Clear Cache
Global cache cleanup and site data (cookies/storage) with time periods and notifications. Great for developers. F9 shortcut included!
90,798 users
Show Video Controls for Firefox
Automatically enables video controls when playing html webm videos.
4,519 users
Tranquility Reader
Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff.
50,702 users
Control Panel for Twitter
Gives you more control over Twitter and adds missing features and UI improvements
46,961 users