Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Simple Translate
Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.
245,259 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.
212,455 users
Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
6,975 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
20,462 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
18,897 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.
109,153 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
776,180 users
Privacy Badger
Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you.
1,830,883 users
Weather Extension
Weather at a glance in Firefox: toolbar temperature, hourly and daily forecasts, radar, eight themes, and optional Weather Pro features.
23,194 users
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
388,408 users
Yomitan
Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.
44,032 users
Control Panel for YouTube
Gives you more control over YouTube by adding missing options and UI improvements
28,770 users