Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1,164,679 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.
1,016,910 users
AdBlocker for YouTube™
Remove all annoying ads from YouTube.
480,703 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
450,048 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
338,793 users
Tree Style Tab
Show tabs like a tree.
212,937 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
145,634 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
138,423 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.
110,548 users
Gesturefy
Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands.
97,058 users
Simple Tab Groups
Create, modify, and quickly change tab groups
88,494 users
Unhook: Remove YouTube Recommended Videos Comments
Hide YouTube related videos, comments, video suggestions wall, homepage recommendations, trending tab, and other distractions.
77,235 users
Tabliss - New Tab
A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.
72,871 users
Block Site
A customizable, password-protected website blocker and redirector.
71,784 users
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
65,783 users
Turbo Download Manager
A download manager with the ability to pause and resume downloads, download remote files, and more.
64,115 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.
43,090 users
Undo Close Tab
Allows you to restore the tab you just closed with a single click—plus it can offer a list of recently closed tabs within a convenient context menu.
42,648 users
Print Edit WE
Edit the contents of a web page prior to printing or saving. Elements in the web page can be edited, formatted, hidden or deleted. Unwanted content, such as adverts and sidebars, can easily be removed.
40,536 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.
38,219 users
Audio Equalizer
Stylish audio equalizer in toolbar popup.
37,616 users
Tranquility Reader
Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff.
37,040 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
33,978 users
Custom Scrollbars
Give Firefox a personal touch with customized scrollbars!
29,308 users
Webmail Ad Blocker
Remove advertising clutter from your web-based email. Expand your viewable area by blocking and removing ads on the right-hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.
28,883 users