The top 25 most used Firefox add-on in Privacy & Security category

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Privacy & Security

Abstract
Accessibility
Alerts & Updates
Appearance
Bookmarks
Causes
Download Management
Fashion
Feeds, News & Blogging
Film and TV
Firefox
Foxkeh
Games & Entertainment
Holiday
Language Support
Music
Nature
Other extensions
Other themes
Photos, Music & Videos
Privacy & Security
Scenery
Search Tools
Seasonal
Shopping
Social & Communication
Solid
Sports
Tabs
Web Development
Websites

Add-ons (also known as extensions) are small programs that run inside web browsers like Mozilla Firefox. They add extra features to the browser without having to download anything new. You can use extensions to make browsing faster, easier, and safer. Some extensions even let you do things like translate text on websites, search the web, and play games.

There are over 28,000 Firefox-addons and 480,000 themes, making it hard to find the best ones. so we have created a way to sort through all of them. Use the dropdown above to set different filters. Add-ons are sorted by number of active users.

To set even more advanced filters, and sort the Firefox add-ons differently, please visit our Advanced search tool. Note that Advanced search tool is only available to premium members.

#1, uBlock Origin

Raymond Hill

Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.

4.79 (17,582)

7,872,253

#2, AdBlocker Ultimate

AdAvoid

Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.

4.78 (24,341)

2,285,509

#3, DuckDuckGo Privacy Essentials

DuckDuckGo

Simple and seamless privacy protection for your browser: tracker blocking, cookie protection, DuckDuckGo private search, email protection, HTTPS upgrading, and much more.

4.36 (2,119)

1,548,402

#4, Privacy Badger

EFF Technologists

Automatically learns to block invisible trackers.

4.80 (2,423)

1,230,137

#5, AdGuard AdBlocker

Adguard Software Ltd

Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.

4.70 (5,667)

1,059,082

#6, Ghostery – Privacy Ad Blocker

Ghostery

Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.

4.30 (4,170)

1,049,093

#7, Bitwarden Password Manager

Bitwarden Inc.

At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information.

4.76 (7,881)

734,985

#8, AdBlocker for YouTube™

AdblockLite

Remove all annoying ads from YouTube.

4.04 (1,042)

464,885

#9, NoScript Security Suite

Giorgio Maone

The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.

4.40 (2,205)

305,381

#10, Decentraleyes

Thomas Rientjes

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.

4.80 (1,424)

265,416

#11, Cookie AutoDelete

CAD Team

Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Keep the ones you trust (forever/until restart) while deleting the rest. Containers Supported

4.58 (1,442)

232,448

#12, ClearURLs

Kevin R.

Removes tracking elements from URLs

4.44 (780)

212,923

#13, FoxyProxy Standard

Eric

FoxyProxy is an open-source, advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. No paid accounts are necessary; bring your own proxies or buy from any vendor. The original proxy tool, since 2006.

3.95 (821)

209,818

#14, Disconnect

Disconnect

Make the web faster, more private, and more secure.

4.15 (479)

96,764

#15, User-Agent Switcher and Manager

Ray

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.

4.23 (648)

95,037

#16, Block Site

Ray

A customizable, password-protected website blocker and redirector.

4.04 (405)

71,794

#17, Don't track me Google

Rob W

Removes the annoying link-conversion at Google Search / maps / ...

4.66 (301)

66,413

#18, RoboForm Password Manager

Siber Systems

RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically

4.33 (3,994)

63,727

#19, Popup Blocker (strict)

Jeremy Schomery

Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address

4.22 (454)

61,388

#20, SingleFile

gildas

Save an entire web page—including images and styling—as a single HTML file.

4.76 (815)

57,653

#21, CanvasBlocker

kkapsner

Alters some JS APIs to prevent fingerprinting.

4.60 (384)

25,796

#22, PopUpOFF

RomanistHere

Removes and prevents popups, overlays and cookie notifications, other tools do not. Enjoy the original look of the internet.

4.47 (75)

25,278

#23, FoxyTab

erosman

Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer

4.61 (409)

20,908

#24, Clear Browsing Data

Armin Sebastian

Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.

4.40 (175)

18,844

#25, History Cleaner

Rayquaza01

Deletes browsing history older than a specified number of days.

4.62 (172)

15,971