Add-ons for Firefox (en-US)

RECOMMENDED

Zoom Page WE

A simple way to adjust the size of any page's text — or even enlarge the page itself.

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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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Productivity tools

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YouTube customization

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Privacy & Security extensions

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Recommended extensions

Tomato Clock
Tomato Clock is a simple browser extension that helps with online time management.
Rated 4.5 out of 5
Samuel Jun
36,042 users
TWP - Translate Web Pages
Translate your page in real time using Google, Bing or Yandex. It is not necessary to open new tabs.
Rated 4.8 out of 5
Filipe Dev
661,296 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
100,106 users
Clear Browsing Data
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.
Rated 4.4 out of 5
Armin Sebastian
20,513 users

Top rated themes

Kirby9
Rated 5 out of 5
＼(^o^)／
9,425 users
Praise the sun (animated)
Rated 4.9 out of 5
anon
16,082 users
Spirited Away (Animated)
Rated 4.9 out of 5
Max
22,755 users

Tab managers

Tabby - Window & Tab Manager
Tabby helps you manage a lot of windows and tabs easily; it can help you open, close, move, pin, and do many other things on tabs and windows quickly. With Tabby, you can even save all you windows and tabs for later with just one click!
Rated 4.3 out of 5
BillK
19,647 users
Tree Style Tab
Show tabs like a tree.
Rated 4.5 out of 5
Piro (piro_or)
226,311 users
Simple Tab Groups
Create, modify, and quickly change tab groups
Rated 4 out of 5
Drive4ik
105,191 users
OneTab
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
Rated 4.2 out of 5
OneTab Team
175,441 users

Popular extensions

uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
Rated 4.8 out of 5
Raymond Hill
9,768,287 users
Video DownloadHelper
Download videos from the web. Easy, smart, no tracking.
Rated 4.3 out of 5
mig
1,969,544 users
Privacy Badger
Automatically learns to block invisible trackers.
Rated 4.8 out of 5
EFF Technologists
1,906,328 users
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
Rated 4.7 out of 5
Adguard Software Ltd
1,420,734 users

Recommended themes

Snowflake Theme
Rated 4.7 out of 5
Moondust13
1,374 users
Dark Metall 1717
Rated 4.4 out of 5
Albert Baum
13,094 users
Everforest Dark Medium Theme
Rated 4.8 out of 5
Bullfinch
1,115 users

Twitch extensions

BetterTTV
Enhances Twitch and YouTube with new features, emotes, and more.
Rated 4.6 out of 5
NightDev
489,517 users
Alternate Player for Twitch.tv
Alternate player of live broadcasts for Twitch.tv website.
Rated 4.3 out of 5
Alexander Choporov (CoolCmd)
35,830 users
Twitch Chat pronouns
Add Pronouns to Twitch Chat
Rated 3.4 out of 5
Alejo Pereyra
16,078 users
Unwanted Twitch
Hide unwanted streams, games, categories, channels and tags on: twitch.tv
Rated 4.2 out of 5
kwaschny.net
5,818 users

“streaming” tagged extensions

Video DownloadHelper
Download videos from the web. Easy, smart, no tracking.
Rated 4.3 out of 5
mig
1,969,544 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
Rated 4.7 out of 5
Maxime RF
681,886 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
517,592 users
BetterTTV
Enhances Twitch and YouTube with new features, emotes, and more.
Rated 4.6 out of 5
NightDev
489,517 users