Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
53,951 users
RoboForm Password Manager
RoboForm Password Manager makes your life easier by remembering passwords and logging you into websites automatically
53,477 users
Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
7,102 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
19,007 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.
110,696 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
780,069 users
Privacy Badger
Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you.
1,855,064 users
Weather Extension
The best way to see the weather right in your browser. Easier than looking outside!
21,846 users
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
386,051 users
Yomitan
Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.
43,555 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
156,814 users