Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1,297,350 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.
159,694 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.
110,565 users
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
98,836 users
SoundFixer
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
48,482 users
Greasemonkey
Customize the way a web page displays or behaves, by using small bits of JavaScript.
161,061 users
Popup Blocker Ultimate
Best Pop-up Blocker for Firefox. (Best in Rating, Performance, This addon does NOT collect user's data same as Poper Blocker)If your Firefox version is not 57+ please install version 8.1 from Official website.
52,583 users
Cookie Quick Manager
An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
46,712 users
Adblock for Youtube™
Popular Adblock for Youtube™ Extension: Removes the video ads from Youtube™. Thanks to all AdBlock supporters!
38,326 users
Mate Translate – translator, dictionary
Your all-in-one translator for web pages, highlighted text & Netflix subtitles. Translate and learn words in 103 languages.
19,945 users
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
12,732 users
Page Assist - A Web UI for Local AI Models
Use your locally running AI models to assist you in your web browsing.
8,853 users
Scratch Addons
Scratch Addons provides customizable features and themes for the scratch.mit.edu website and project editor.
8,450 users
Pinned Google Calendar
Go to the pinned Google Calendar tab. If it doesn't exist, it's created.
8,203 users
Form History Control
Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller. Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.
6,992 users
WebScrapBook
Capture web pages to local device or backend server for future retrieval, organization, annotation, and edit.
6,967 users
