Broken Link Checker
A SEO tool to find broken (404) and redirected (301, 307, 308) links in all frames
1,667 users
Password Depot Extension
Connects Firefox to Password Depot — the award-winning, German-engineered password manager. Auto-fill logins, passkeys, and TOTP codes. Your passwords stay where you choose — never on our servers.
1,650 users
Twitter Container
This addon is a fork of Mozilla's Facebook Container but for Twitter. Twitter Container isolates your Twitter activity from the rest of your web activity in order to prevent them from tracking you. This addon is NOT an official Mozilla Product.
1,645 users
KProxy Extension for Firefox
Official KProxy Extension. The best anonymous proxy solution for work.
1,626 users
PC Matic Adblocker Lite
A permission-less content blocker. Blocks ads, trackers, miners, and more immediately upon installation.
1,625 users
LockSelf - Professional Password Manager
Secure the management of your professional passwords with the LockPass extension. Certified and sovereign European solution.
1,620 users
Remove Cookies Button
Toolbar button for removing cookies, local storage and session storage from the current tab. The button displays a number of deleted cookies (shown in the screenshot). In case of deletion problems button displays word "Error" and shows notification.
1,605 users
HackTools
Hacktools, is a web extension facilitating your web application penetration tests, it includes cheat sheets as well as all the tools used during a test such as XSS payloads, Reverse shells to test your web application.
1,598 users
Laboratory (Content Security Policy / CSP Toolkit)
Because good website security shouldn't only be available to mad scientists! Laboratory is a WebExtension that helps you generate a Content Security Policy (CSP) header for your website.
1,591 users
Font Fingerprint Defender
Defending against Font fingerprinting by reporting a fake value.
1,571 users
YouTube Shorts Blocker
35 lines of code that hide YouTube Shorts everywhere. Brutally minimal, completely secure, fully verifiable. No tracking, no settings, no bloat. Read the entire source in 30 seconds.
1,568 users
Luna Adblock for Youtube & Websites
Block ads on YouTube and across the web with Luna Adblock
1,553 users
Nightfall DLP for Browsers
Nightfall AI: AI-Powered Data Loss Prevention for Your Sensitive Data
1,548 users
TorGuard VPN Extension
TorGuard VPN's Extension offers SSL Proxy access that helps you unblock websites, hide your location and encrypt your connection.
1,514 users
Email Extractor Pro
Extracts all the emails from either the current tab or all opened tabs
1,514 users
Extension source viewer
View source code of Firefox add-ons and Chrome extensions (crx/nex/xpi) from addons.mozilla.org, the Chrome Webstore and elsewhere, with CRX Viewer (crxviewer).
1,514 users
Psono - Free Password Manager
Psono password manager, store and share your passwords securely.
1,501 users
WebGL Fingerprint Defender
Defending against WebGL fingerprinting by reporting a fake value.
1,487 users
