Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Print Edit WE
Edit the contents of a web page prior to printing or saving. Elements in the web page can be edited, formatted, hidden or deleted. Unwanted content, such as adverts and sidebars, can easily be removed.
36,307 users
SoundFixer
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
42,762 users
Control Panel for Twitter
Gives you more control over Twitter and adds missing features and UI improvements
47,004 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
22,977 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
11,299 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
97,452 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.
112,616 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
730,448 users
Immersive Translate - Translate Website & PDF
Free Translate Website, Translate PDF & Epub eBook, Translate Video Subtitles in Bilingual
80,372 users
Tab Stash
Easily save and organize batches of tabs as bookmarks. Clear your tabs, clear your mind. Only for Firefox.
36,824 users
Yomitan
Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.
31,810 users
Adaptive Tab Bar Color
Changes the color of Firefox theme to match the website’s appearance.
46,279 users