Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1,157,318 users
ScrollAnywhere
Scroll page without touching scroll-bar! Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar. Features also: - "grab and drag" scrolling - customizable scrollbars! - the Momentum auto-scroll
15,395 users
DownThemAll!
The Mass Downloader for your browser
212,322 users
EPUBReader
Read ePub files right in Firefox. No additional software needed!
134,702 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.
68,502 users
Privacy Badger
Automatically learns to block invisible trackers.
1,230,523 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
456,257 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.
260,633 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
20,191 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!)
54,086 users
Simple Tab Groups
Create, modify, and quickly change tab groups
94,208 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
353,036 users