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.
159,655 人のユーザー
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.
113,781 人のユーザー
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
99,840 人のユーザー
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!)
43,099 人のユーザー
Tomato Clock - A Simple Pomodoro Timer
A simple browser extension for managing your productivity
32,167 人のユーザー
Greasemonkey
Customize the way a web page displays or behaves, by using small bits of JavaScript.
168,355 人のユーザー
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.
56,185 人のユーザー
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.
49,075 人のユーザー
BlockTube
YouTube™ Content Blocker Block channels and videos from YouTube™ Fast and easy
29,623 人のユーザー
Mate Translate – translator, dictionary
Your all-in-one translator for web pages, highlighted text & Netflix subtitles. Translate and learn words in 103 languages.
22,168 人のユーザー
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13,452 人のユーザー
Impulse Blocker
Block distracting websites. Just list the sites you want Impulse Blocker to pause or completely avoid.
10,941 人のユーザー
Pinned Google Calendar
Go to the pinned Google Calendar tab. If it doesn't exist, it's created.
8,787 人のユーザー
