Add-ons for Firefox (en-US)

RECOMMENDED

EPUBReader

Read ePub files right in Firefox—increase font size, page dimensions, and more.

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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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Tab organizers and tools

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Privacy beyond browser extensions

Media enhancers for Firefox

Explore extensions

Recommended extensions

Forecastfox (fix version)
Get international weather updates (via AccuWeather.com) displayed right in Firefox with this highly customizable extension.
Rated 4 out of 5
Oleksandr
37,443 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 4.3 out of 5
Ray
66,523 users
Tree Style Tab
Show tabs like a tree.
Rated 4.4 out of 5
Piro (piro_or)
149,065 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
Rated 4.3 out of 5
sienori
100,337 users

Popular themes

Matte Black (Red)
Rated 4.8 out of 5
Elijah Lopez
82,062 users
Dark Fox
Rated 4.7 out of 5
randomaster
58,162 users
Northern Lake FT by MaDonna
Rated 4.8 out of 5
MaDonna
29,186 users

Enhanced privacy extensions

Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
Rated 4.5 out of 5
Mozilla Firefox
2,014,370 users
Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
Rated 4.3 out of 5
Ghostery
1,252,270 users
Privacy Badger
Automatically learns to block invisible trackers.
Rated 4.8 out of 5
EFF Technologists
1,048,745 users
DuckDuckGo Privacy Essentials
Privacy, simplified. Our add-on provides the privacy essentials you need to seamlessly take control of your personal information, no matter where the internet takes you: tracker blocking, smarter encryption, DuckDuckGo private search, and more.
Rated 4.6 out of 5
DuckDuckGo
1,504,274 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
5,209,056 users
Video DownloadHelper
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
Rated 4.3 out of 5
mig
2,313,795 users
DuckDuckGo Privacy Essentials
Privacy, simplified. Our add-on provides the privacy essentials you need to seamlessly take control of your personal information, no matter where the internet takes you: tracker blocking, smarter encryption, DuckDuckGo private search, and more.
Rated 4.6 out of 5
DuckDuckGo
1,504,274 users
AdBlocker Ultimate
Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.
Rated 4.8 out of 5
AdAvoid
1,386,073 users

Recommended themes

Little sunrise on beach
Rated 3.3 out of 5
Bulgarian Boy
33 users
Fogo
Rated 5 out of 5
Vanessa
189 users
Pink Arrow
Rated 5 out of 5
Flor
33 users

Recommended password managers

Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
Rated 4.8 out of 5
Bitwarden Inc.
284,716 users
LastPass Password Manager
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
Rated 3.8 out of 5
LastPass
935,400 users
RoboForm Password Manager
RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically
Rated 4.2 out of 5
Siber Systems
78,153 users
MYKI Password Manager & Authenticator
Offline P2P encrypted password manager & authenticator. Auto-fill Two-Factor Authentication (2FA) tokens.
Rated 4.7 out of 5
MYKI
4,603 users