Add-ons for Firefox (en-US)

RECOMMENDED

OneTab

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

Get the extension

Extensions are like apps for Firefox.

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

See all extensions

YouTube customization

See staff picks

Privacy & Security

See staff picks

Reddit extensions

See staff picks

Recommended extensions

Clippings
Save frequently-entered text for pasting later.
Rated 4.4 out of 5
AE Creations
11,885 users
SingleFile
Save an entire web page—including images and styling—as a single HTML file.
Rated 4.8 out of 5
gildas
86,743 users
Notefox: websites notes
Take notes on every website in a smart and simple way!
Rated 4.4 out of 5
Saverio Morelli (Sav22999)
12,151 users
YouTube Search Fixer
Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens.
Rated 4.4 out of 5
Phoenix
33,309 users

Recommended themes

Senzune Fractal Luster
Rated 4.8 out of 5
Jutte Angarde
828 users
Cool_summer
Rated 4.5 out of 5
Mefisto
111 users
Red Jazz
Rated 4.8 out of 5
rix-wn
690 users

Tab managers

Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
Rated 4.5 out of 5
tlintspr
91,948 users
OneTab
Save up to 95% memory and reduce tab clutter
Rated 4.1 out of 5
OneTab Team
155,851 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
151,610 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
73,303 users

Gaming & media extensions

Enhancer for YouTube™
Take control of YouTube and boost your user experience!
Rated 4.7 out of 5
Max RF
549,406 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)
760,955 users
Return YouTube Dislike
Returns ability to see dislike statistics on youtube
Rated 4.6 out of 5
Dmitry Selivanov
916,208 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
216,791 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
1,296,713 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
216,791 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
48,643 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
52,590 users

“streaming” tagged extensions

Video Download Helper
Download videos from the web. Easy, smart, no tracking.
Rated 4.3 out of 5
vdh
1,754,547 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
Rated 4.7 out of 5
Max RF
549,406 users
BetterTTV
Enhances Twitch and YouTube with new features, emotes, and more.
Rated 4.5 out of 5
NightDev
475,710 users
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
Rated 4.1 out of 5
Dishita
364,477 users