uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
7,819,337 users
AdBlocker Ultimate
Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.
2,320,221 users
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
1,056,719 users
Bitwarden Password Manager
At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information.
730,443 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.
309,099 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.
267,023 users
SingleFile
Save an entire web page—including images and styling—as a single HTML file.
56,807 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.
211,978 users
AVG Online Security
AVG Browser Security and Web Reputation Plugin. Offering protection against known phishing and malware sites, improving your browsing overall browsing experience with crowd sourced web reputation rating.
73,759 users
Cookie-Editor
Cookie-Editor lets you efficiently create, edit and delete a cookie for the current tab. Perfect for developing, quickly testing or even manually managing your cookies for your privacy.
61,623 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.
61,514 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
3,826 users
uBlock Origin Lite
A permission-less content blocker. Blocks ads, trackers, miners, and more immediately upon installation.
3,786 users
SmartProxy
SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.
2,761 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.
556 users
nos2x-fox
Nostr Signer Extension (for Firefox)
550 users
BearBy
The bearby addon connecting an API to websites which use web3 scripts of bearby so they can interact with the massa blockchain. Using bearby addon as web3 developer you can inject bearby-web3.js to your website.
443 users
Anti-Grabify
Blocks IP grabber links from Grabify and other known IP grabber sites.
358 users
VirusTotal Website Security Check
Automatically opens a VirusTotal website scan page on the URL you are visiting right now, in just a click of a button.
312 users
Obfuscate
Make web page text unreadable
221 users
IP Whois
View info about IP, DNS records, SSL, country flag, domain whois, location, stats and more of any website.
206 users
Burp Proxy
BurpSuit Proxy for hackers, Bug Hunters and Web Application Penetration Tested by Mr. Soldier.
193 users
Adblock - 1Block
Powerful Ad Blocking, Privacy Protection, Faster Browsing, User-Friendly, and Lightweight.
111 users
Privacy Focused Site Blocker (by Avrodh.com)
Site blocker with a focus on privacy. Block unlimited websites with schedules, password protection, and custom blocked pages
101 users
Server Status
Quickly view basic info about every webpage, including server location, IP addresses, certificate issuer and expiration date, HTTP status code and load time.
88 users