YouTube Video Downloader
All-in-one online video downloader for YouTube, Facebook & 700+ sites. Download videos up to 4K in MP4, MP3 & more formats. Fast, secure, server-side processing—no device load, stay anonymous. The ultimate YouTube video downloader extension.
1,658 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.
1,652 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.
1,622 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.
1,613 users
PC Matic Adblocker Lite
A permission-less content blocker. Blocks ads, trackers, miners, and more immediately upon installation.
1,613 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.
1,597 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
Nightfall DLP for Browsers
Nightfall AI: AI-Powered Data Loss Prevention for Your Sensitive Data
1,574 users
Email Extractor Pro
Extracts all the emails from either the current tab or all opened tabs
1,573 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.
1,557 users
Font Fingerprint Defender
Defending against Font fingerprinting by reporting a fake value.
1,535 users
TorGuard VPN Extension
TorGuard VPN's Extension offers SSL Proxy access that helps you unblock websites, hide your location and encrypt your connection.
1,528 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).
1,503 users
Psono - Free Password Manager
Psono password manager, store and share your passwords securely.
1,484 users
Windows 10 Accounts Port
Sign in to supported websites with accounts on Windows 10. Ported from the Chrome's Windows 10 Accounts extension.
1,474 users
WebGL Fingerprint Defender
Defending against WebGL fingerprinting by reporting a fake value.
1,473 users
Scam Blocker
Intelligently detects and intercepts malware links real-time ensuring that you are protected from fraudulent and unwanted scams.
1,445 users
