uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
8,654,855 users
Privacy Badger
Automatically learns to block invisible trackers.
1,384,166 users
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
1,252,224 users
Ghostery – Privacy Ad Blocker
The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook.
1,026,330 users
NoScript Security Suite
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.
290,939 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.
257,365 users
AdBlocker Ultimate
Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.
1,860,352 users
Firefox Relay
Firefox Relay lets you generate email aliases that forward to your real inbox. Use it to hide your real email address and protect yourself from hackers and unwanted mail.
220,423 users
I still don't care about cookies
Community version of the popular extension "I don't care about cookies" https://github.com/OhMyGuus/I-Dont-Care-About-Cookies
81,080 users
AdNauseam
Blocking ads and fighting back against advertising surveillance.
62,066 users
Popup Blocker Ultimate
Best Pop-up Blocker for Firefox. (Best in Rating, Performance, This addon does NOT collect user's data same as Poper Blocker)If your Firefox version is not 57+ please install version 8.1 from Official website.
61,826 users
Consent-O-Matic
Automatic handling of GDPR consent forms
46,304 users
LocalCDN
Emulates remote frameworks (e.g. jQuery, Bootstrap, AngularJS) and delivers them as local resource. Prevents unnecessary 3rd party requests to Google, StackPath, MaxCDN and more. Prepared rules for uBlock Origin/uMatrix.
18,205 users
LibRedirect
Redirects YouTube, Twitter, TikTok... requests to alternative privacy friendly frontends.
8,884 users
UnTrap for YouTube
Hide YouTube recommendations, shorts, comments, suggestions, related videos, trending and other distractions.
6,292 users
wiki.gg Redirect
Redirects all requests from wikis that have moved to wiki.gg from their former host.
6,107 users
Random User-Agent (Switcher)
Automatically change the user agent after a specified period of time to a randomly selected one, thus hiding your real user agent
4,598 users
AdDefender - AdBlocker
This extension blocks ads on websites to improve user experience.
1,042 users
WhatsApp Online Monitor
When your crush 💕 be online 🤳 on whatsapp👀 get notification 🔔 in your Desktop 🖥️ and cross platform notification without any installed app in Smartphone 📱 and more
533 users
Anti-Grabify
Blocks IP grabber links from Grabify and other known IP grabber sites.
518 users
JShelter
JShelter controls the APIs provided by the browser. The goal is to improve the privacy and security of the user running the extension.
494 users
CastleBlock
Removes the Paywall from certain webpages, such as some News Outlets. Use by clicking on the extension
446 users
Auto Referer
Control HTTP referer to protect privacy and not break web. And this is the addon (maybe the only one?) that deals with the 'document.referrer' bug
440 users
Intercept Redirect
Skip tracking redirects that serve no purpose other than to waste your valuable time.
421 users
FMHY SafeGuard
An extension that detects starred, safe, unsafe or potentially unsafe sites using the FMHY Filterlist.
256 users