Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
10,121 users
New Tab Override
New Tab Override allows you to set the page that shows whenever you open a new tab.
64,051 users
FoxClocks
FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.
11,588 users
FoxyProxy Standard
FoxyProxy is an open-source, advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. No paid accounts are necessary; bring your own proxies or buy from any vendor. The original proxy tool, since 2006.
209,716 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.
68,248 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
442,382 users
Privacy Badger
Automatically learns to block invisible trackers.
1,212,602 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.
262,189 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
10,121 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!)
38,902 users
Simple Tab Groups
Create, modify, and quickly change tab groups
82,372 users
Clippings
Save frequently-entered text for pasting later.
13,758 users