Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
583,406 users
Popup Blocker (strict)
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
63,111 users
Copy PlainText
Copy Plain Text without any formatting
28,987 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
139,395 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.
68,774 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
454,454 users
Privacy Badger
Automatically learns to block invisible trackers.
1,236,873 users
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
7,991,483 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
17,694 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!)
50,073 users
Simple Tab Groups
Create, modify, and quickly change tab groups
91,486 users
Clippings
Save frequently-entered text for pasting later.
14,267 users