Add-ons for Firefox (en-US)

RECOMMENDED

OneTab

Convert all your open tabs into a list to easily manage them and speed up Firefox.

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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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Anti-tracking extensions

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Essential add-ons

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Writing tools

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Recommended extensions

SingleFile
Save an entire web page—including images and styling—as a single HTML file.
Rated 4.8 out of 5
gildas
78,116 users
User-Agent Switcher and Manager
Spoof websites trying to gather information about your web navigation—like your browser type and operating system—to deliver distinct content you may not want.
Rated 4.1 out of 5
Ray
87,815 users
Gesturefy
Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands.
Rated 4.5 out of 5
Robbendebiene
89,570 users
Clippings
Save frequently-entered text for pasting later.
Rated 4.4 out of 5
AE Creations
12,023 users

Tab managers

Tree Style Tab
Show tabs like a tree.
Rated 4.5 out of 5
Piro (piro_or)
180,214 users
OneTab
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
Rated 4.1 out of 5
OneTab Team
169,807 users
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
151,095 users
Tabliss - New Tab
A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.
Rated 4.6 out of 5
tabliss.io
76,124 users

Gaming & media extensions

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)
664,193 users
Return YouTube Dislike
Returns ability to see dislike statistics on youtube
Rated 4.7 out of 5
Dmitry Selivanov
910,373 users
BetterTTV
Enhances Twitch and YouTube with new features, emotes, and more.
Rated 4.6 out of 5
NightDev
501,251 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
200,600 users

Recommended themes

Saphirefox
Rated 5 out of 5
Нчала
6,954 users
FireDEV
Rated 4.1 out of 5
Shvabra
1,126 users
CELESTIAL SPRITE --ANIMATED--
Rated 4.6 out of 5
sassygirl1016
430 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
1,277,365 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
200,600 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
40,686 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
61,825 users

“youtube” tagged extensions

Video DownloadHelper
Download videos from the web. Easy, smart, no tracking.
Rated 4.3 out of 5
Paul
1,817,670 users
Ghostery – Privacy Ad Blocker
The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook.
Rated 4.3 out of 5
Ghostery
1,006,666 users
Return YouTube Dislike
Returns ability to see dislike statistics on youtube
Rated 4.7 out of 5
Dmitry Selivanov
910,373 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)
664,193 users