Firefox Relay
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
13,505 users
Simple Translate
Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.
310,653 users
YouTube NonStop
Tired of getting that "Video paused. Continue watching?" confirmation dialog? This extension autoclicks it, so you can listen to your favorite music uninterrupted. Working on YouTube and YouTube Music!
139,191 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
143,931 users
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
9,605,439 users
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
1,410,742 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.
395,655 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
401,775 users
Dark Background and Light Text
Make every web page (or just the pages you want) display light text on dark backgrounds. All color variations are fully customizable.
45,581 users
LeechBlock NG
LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
109,727 users
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
488,562 users
Download Video and Flash - HD Download
Download Video and Flash - HD Download is a great download helper tool that lets you download video and Flash games very easily. Download from YouTube, Facebook, Dailymotion, Vimeo and more. Download and enjoy! Download now!
60,955 users
YouTube Downloader (UDL Helper)
Download YouTube / Instagram / Odnoklassniki videos and extract audio from video with just a few mouse clicks. Supported media formats are MP3, MP4, WEBM. Capture frames from online videos with a screenshot button.
36,428 users