Tree Style Tab
Show tabs like a tree.
173,489 users
OneTab
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
163,655 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.
157,265 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
149,807 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!
141,774 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.
132,199 users
EPUBReader
Read ePub files right in Firefox. No additional software needed!
126,427 users
Unhook: Remove YouTube Recommended Videos Comments
Hide YouTube related videos, comments, video suggestions wall, homepage recommendations, trending tab, and other distractions.
114,875 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.
109,291 users
'Improve YouTube!' 🎧 (For YouTube & Video)
Youtube Extension. Powerful but lightweight. Enrich your Youtube and content selection. Make YouTube tidy and smart! (Layout, Filters, Shortcuts, Playlist)
107,906 users
Download All Images
Easily save images with a wide range of customization features, such as file size, dimensions, and image type.
101,948 users
Consent-O-Matic
Automatic handling of GDPR consent forms
101,881 users
Flagfox
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
100,314 users
User-Agent Switcher and Manager
Spoof websites trying to gather information about your web navigation—like your browser type and operating system—to deliver distinct content you may not want.
85,992 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
85,098 users
Gesturefy
Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands.
84,950 users
Simple Tab Groups
Create, modify, and quickly change tab groups
79,386 users
SingleFile
Save an entire web page—including images and styling—as a single HTML file.
77,231 users
Immersive Translate - Translate Website & PDF
Free Translate Website, Translate PDF & Epub eBook, Translate Video Subtitles in Bilingual
75,610 users
Popup Blocker (strict)
Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address
75,237 users
Tab Reloader (page auto refresh)
An easy-to-use tab reloader with custom reloading time settings for individual tabs
74,846 users
Tabliss - New Tab
A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.
74,838 users
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
74,128 users
Block Site
A customizable, password-protected website blocker and redirector.
71,345 users
Disconnect
Make the web faster, more private, and more secure.
70,121 users