Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Tomato Clock
Tomato Clock is a simple browser extension that helps with online time management.
37,300 users
OneTab
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
155,558 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
6,622 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
28,221 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.
70,044 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
443,428 users
Privacy Badger
Automatically learns to block invisible trackers.
1,244,870 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.
267,917 users
Stylebot
Change the appearance of the web instantly
10,192 users
Cookie AutoDelete
Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Keep the ones you trust (forever/until restart) while deleting the rest. Containers Supported
238,138 users
Tree Style Tab
Show tabs like a tree.
211,776 users
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
593,608 users