Privacy Badger
Automatically learns to block invisible trackers.
561,473 users
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
337,272 users
Cookie AutoDelete
Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Whitelist the ones you trust while deleting the rest. Support for Container Tabs.
151,801 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.
137,766 users
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
337,272 users
Emoji Cheatsheet
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook. Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
83,655 users
Social Fixer
Social Fixer for Facebook fixes annoyances, adds features, and enhances existing functionality to make FB more fun and efficient. Filter the news feed, hide sponsored posts and political posts, hide parts of the page you don't want to see, and more!
16,680 users
FB unseen
Blocks the ”seen” feature of the facebook messenger, and your friends will no longer be able to see if you read their messages.
7,556 users
Tile Tabs WE
Take tabs from parent windows and arrange them in layouts of tiled sub-windows, using the toolbar button, context menu or keyboard shortcuts. Makes it easy to browse, compare or monitor multiple pages. Synchronize scroll. Save and re-open layouts.
24,435 users
User-Agent Switcher
Quickly and easily switch between popular user-agent strings.
91,319 users
SoundFixer
Lets you fix annoying sound problems in YouTube videos and such. Like audio in one channel only, too quiet or too loud. (Unfortunately, doesn't work on many other websites because of cross-domain issues — but it does work on YouTube.com!)
3,245 users
Tree Style Tab
Show tabs like a tree.
120,025 users
Adblock Plus
Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
11,418,617 users
uBlock Origin
Finally, an efficient blocker. Easy on CPU and memory.
4,882,445 users
Video DownloadHelper
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
3,218,031 users
Easy Screenshot
Capture a screenshot of the whole webpage, and save in your desktop in default.
2,500,011 users