DownThemAll!
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.
855,728 users
YouTube High Definition
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
163,939 users
Web Archives
View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is.
66,165 users
Tabby - Window & Tab Manager
Tabby helps you manage a lot of windows and tabs easily; it can help you open, close, move, pin, and do many other things on tabs and windows quickly. With Tabby, you can even save all you windows and tabs for later with just one click!
25,772 users
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
9,543,078 users
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
1,404,584 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.
390,520 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
400,458 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.
45,471 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.
109,272 users
'Improve YouTube!' 🎧 (For YouTube & Video)
Youtube Extension. Powerful but lightweight. Enrich your Youtube & content selection. Make YouTube tidy&smart! Layout Filters Shortcuts Adblocker Playlist
57,102 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.
47,139 users
Adaptive Tab Bar Color
Changes the color of Firefox theme to match the website’s appearance.
42,989 users
