Add-ons for Firefox (en-US)

RECOMMENDED

Dark Reader

Enable night mode for a better viewing experience.

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Extensions are like apps for Firefox.

They add features to Firefox to make browsing faster, safer, or just plain fun.

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YouTube customization

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Privacy & Security

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Reddit extensions

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Recommended extensions

Control Panel for Twitter
Gives you more control over Twitter and adds missing features and UI improvements
Rated 4.7 out of 5
Jonny Buchanan
54,463 users
Download Manager (S3)
View and manage downloads from a tidy status bar.
Rated 4.1 out of 5
Oleksandr
52,894 users
Media Downloader Unleashed!!
Detect and download 🎬 videos, 🎥 streams, 🎵 audio and other files from your browser! Compatible with .m3u8, .mpd, .mp4, .mp3, .ogg and many more formats and websites! Completely free, open-source!
Rated 4.2 out of 5
🦊 helloyanis
16,216 users
History Cleaner
Deletes browsing history older than a specified number of days.
Rated 4.7 out of 5
Rayquaza01
14,912 users

Recommended themes

Kaeya Namecard (long)
Rated 5 out of 5
37ratsinatrenchcoat
268 users
Bugcrowd (2021)
Rated 4.9 out of 5
Hexadorsip
5,273 users
Dark Matte Texture
Rated 4.3 out of 5
Bob Loblaw
6,529 users

Tab managers

Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
Rated 4.2 out of 5
sienori
166,468 users
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
Rated 4.5 out of 5
tlintspr
97,568 users
OneTab
Save up to 95% memory and reduce tab clutter
Rated 4.1 out of 5
OneTab Team
161,344 users
Tab Reloader (page auto refresh)
An easy-to-use tab reloader with custom reloading time settings for individual tabs
Rated 4.1 out of 5
James Fray
80,651 users

Gaming & media extensions

Enhancer for YouTube™
Take control of YouTube and boost your user experience!
Rated 4.7 out of 5
Max RF
583,909 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
Rated 4.8 out of 5
Ajay (SponsorBlock)
803,497 users
Return YouTube Dislike
Returns ability to see dislike statistics on youtube
Rated 4.5 out of 5
Dmitry Selivanov
908,945 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
Rated 3.8 out of 5
LSD Software
230,043 users

Accessibility extensions

Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Rated 4.5 out of 5
Dark Reader Ltd
1,344,841 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
Rated 3.8 out of 5
LSD Software
230,043 users
Dark Mode
Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.
Rated 3.2 out of 5
Dark Mode
51,238 users
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
Rated 4.7 out of 5
mbnuqw
54,626 users

“privacy” tagged extensions

uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
Rated 4.8 out of 5
Raymond Hill
11,346,738 users
Privacy Badger
Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you.
Rated 4.8 out of 5
EFF Technologists
1,892,936 users
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
Rated 4.6 out of 5
Adguard Software Ltd
1,811,788 users
DuckDuckGo Search & Tracker Protection
⚡Protects your data. Private search with optional AI, private browsing, and ad blocking.
Rated 4.3 out of 5
DuckDuckGo
1,094,765 users