HTML Universal Speed Control
Control the speed of HTML websites with various timing methods.
500 users
masterpassword for Firefox
Keep different passwords for every site you log into without having to remember anything but a single master password. And without the risk of your getting your password list stolen. MasterPassword is available for all your devices!
499 users
blockmaxxing — Ad Blocker for Twitch
Remove ads from Twitch, including stream-level (server-side) ads, entirely in your browser. Private and open source — no backend, no telemetry, no accounts. Whitelist your favorite channels; optional on-device diagnostics.
498 users
TagSpaces Web Clipper
Save web pages or selected content as local files in Markdown, HTML, or PDF — ready for offline reading or organizing with TagSpaces and other apps. Clip articles, take full-page screenshots, create visual bookmarks, and tag your files on save.
497 users
Kimetrak
Kimetrak (Who's tracking me) is an extension allowing you see at a glance what third-party domains are loaded from websites you visit. You can access detailled statistics with a list allowing you to analyse what services are able to track you online.
495 users
Ad Observer
Share the ads you see on Facebook and YouTube with researchers and journalists to increase transparency.
494 users
The Pirate Bay Torrent Search
Search The Pirate Bay in a popup window using an active proxybay
490 users
AmIUnique
An extension to follow the evolution of your browser fingerprint! Be notified as soon as a change is detected!
489 users
Bookmarks Folders Locker/Blocker
Make your bookmarks private! Lock/Block your bookmarks folders (hide the bookmarks inside) with a password (each folder can have a different password), the bookmarks will be encrypted and only you will be able to unlock/unblock them.
488 users
Block Party — Deep clean your social media
Deep clean your social media, notifications, settings and more in just one click.
488 users
VPN.AC SecureProxy
VPN.AC SecureProxy is a secure web-tunnelling extension, or a browser-based VPN.
487 users
Download Virus Checker
Automatically check all the downloads files against well-known anti-viruses using VirusTotal API
485 users
Minimal YouTube
An extension for that replaces the YouTube UI with a minimal design containing no recommendations, shorts, or distractions.
484 users
TranslateLocally for Firefox
TranslateLocally for Firefox is a webextension that enables local and private in-page translations for web browsers. It is a stand-alone extension, but can integrate with TranslateLocally for custom models and even better performance.
484 users
ID50 Password Manager
Stores authentication data on a hardware-encrypted USB device and allows you to fill out log-in forms automatically.
480 users
Moesif Origin & CORS Changer
The most popular and feature rich CORS tool on Chrome (over 100K weekly active users) is rebuilt for Firefox with more features. This plugin allows you to send cross-domain requests. You can also override Request Origin and CORS headers.
479 users
