Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
AdBlocker for YouTube™
Remove all annoying ads from YouTube.
480,351 users
Weather Extension
The best way to see the weather right in your browser. Easier than looking outside!
22,687 users
Copy PlainText
Copy Plain Text without any formatting
28,454 users
Turbo Download Manager
A download manager with the ability to pause and resume downloads, download remote files, and more.
63,244 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.
68,111 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
451,897 users
Privacy Badger
Automatically learns to block invisible trackers.
1,226,502 users
Decentraleyes
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.
261,624 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
18,334 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!)
51,169 users
Simple Tab Groups
Create, modify, and quickly change tab groups
90,989 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
347,782 users