uBlock Origin
AdBlocker Ultimate
Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.
1,696,498 users
Grammar and Spell Checker - LanguageTool
With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.
196,422 users
Stylus
Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.
65,674 users
Smart HTTPS
This extension automatically changes HTTP web addresses to the secure HTTPS, whenever possible.
17,243 users
55,920 users
53,228 users
47,194 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
697,124 users
AdBlocker for YouTube™
Remove all annoying ads from YouTube.
421,778 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
152,788 users
Youtube Audio
Stream just the audio from YouTube to save bandwidth and battery life
31,443 users
Privacy Badger
Automatically learns to block invisible trackers.
1,021,696 users
Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
1,163,171 users
HTTPS Everywhere
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
710,476 users
DuckDuckGo Privacy Essentials
Privacy, simplified. Our add-on provides the privacy essentials you need to seamlessly take control of your personal information, no matter where the internet takes you: tracker blocking, smarter encryption, DuckDuckGo private search, and more.
1,552,194 users
3,348 users
154 users
33 users
Censor Tracker
Censor Tracker — это расширение, которое позволяет обходить интернет-цензуру, уведомлять о сайтах, передающих информацию государственным органам и выявлять новые блокировки.
760 users
Age Restriction Bypass for YouTube™
Extension to bypass YouTube's age verification and watch age restricted videos without having to sign in.
1,277 users
Mapio
Verbessern Sie die Relevanz Ihrer Suchanfragen mit zusätzlichen Inhalten von Mapio.
997 users
Adblock360
Adblock360 protects your browsing experience from all directions.
5,863 users
To Google Translate
Right-click a section of text and click the Translate icon next to it to text translate or listen to it in your language.
839,111 users
Turn Off the Lights for Firefox
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
35,607 users
Don't track me Google
Removes the annoying link-conversion at Google Search / maps / ...
32,191 users
SearchPreview
SearchPreview enhances your search results pages by inserting site preview images (thumbnails) and popularity ranks into Google™, DuckDuckGo™, Yahoo™ and Bing™ search results.
26,063 users