Add-ons for Firefox (en-US)

RECOMMENDED

Smart HTTPS

Automatically navigate to the secure version of a website if it's available.

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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

Explore extensions

Privacy beyond browser extensions

Media enhancers for Firefox

Explore extensions

Recommended extensions

Private Bookmarks
Enables a password-protected bookmark folder.
Rated 4.7 out of 5
rharel
9,038 users
Webmail Ad Blocker
Remove advertising clutter from your web-based email. Expand your viewable area by blocking and removing ads on the right-hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.
Rated 4.4 out of 5
Jason Savard
32,982 users
Download Manager (S3)
View and manage downloads from a tidy status bar.
Rated 4.5 out of 5
Oleksandr
68,041 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
329,695 users

Popular themes

Dark Fox
Rated 4.7 out of 5
randomaster
61,414 users
Matte Black (Red)
Rated 4.9 out of 5
Elijah Lopez
52,394 users
Rainbow Blur
Rated 4.7 out of 5
Alix P
33,885 users

Enhanced privacy extensions

Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
Rated 4.4 out of 5
Ghostery
1,068,701 users
Privacy Badger
Automatically learns to block invisible trackers.
Rated 4.8 out of 5
EFF Technologists
916,554 users
Decentraleyes
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
Rated 4.8 out of 5
Thomas Rientjes
136,716 users
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
1,641,486 users

Popular extensions

uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
Rated 4.7 out of 5
Raymond Hill
3,901,654 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
2,374,946 users
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
1,641,486 users
Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
Rated 4.4 out of 5
Ghostery
1,068,701 users

Recommended themes

Blue Racing
Rated 3.5 out of 5
Phyrexis
182 users
theme | Ori+Hollow Knight+Portal
Rated 4.5 out of 5
BrendanVKM
146 users
Colorful cubes
Rated 4.5 out of 5
Digital Doodles
399 users

Recommended password managers

LastPass Password Manager
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
Rated 3.7 out of 5
LastPass
899,016 users
Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
Rated 4.8 out of 5
Bitwarden Inc.
166,548 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
80,125 users
MYKI Password Manager & Authenticator
Offline P2P encrypted password manager & authenticator. Auto-fill Two-Factor Authentication (2FA) tokens.
Rated 4.8 out of 5
MYKI
3,530 users