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Custom Scrollbars
Give Firefox a personal touch with customized scrollbars!
26 725 users
Imagus
With a simple mouse-over you can enlarge images and display images/videos from links.
60 126 users
Audio Equalizer
Stylish audio equalizer in toolbar popup.
36 842 users
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
65 304 users
723 918 users
470 711 users
412 114 users
AdBlocker for YouTube™
Remove all annoying ads from YouTube.
470 932 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
576 152 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
455 591 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!
128 699 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1 083 911 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
144 762 users
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
75 062 users
Dark Mode
Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.
30 214 users
262 users
4 497 users
6 947 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.
345 636 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
334 220 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.
65 124 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.
35 587 users