Improve YouTube! (Open-Source for YouTube)
Make YouTube tidy & powerful! YouTube Player Size Theme Quality Auto HD Colors Playback Speed Style ad block Playlist Channel H.264
102,711 人のユーザー
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
89,892 人のユーザー
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
82,978 人のユーザー
Tab Reloader (page auto refresh)
An easy-to-use tab reloader with custom reloading time settings for individual tabs
77,694 人のユーザー
Tabliss - New Tab
A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.
73,109 人のユーザー
New Tab Override
New Tab Override allows you to set the page that shows whenever you open a new tab.
61,423 人のユーザー
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.
44,567 人のユーザー
Tomato Clock - A Simple Pomodoro Timer
A simple browser extension for managing your productivity
31,734 人のユーザー
Snap Links Plus
Select a number of links with a rectangle and open them in new tabs. You can also lasso checkboxes to quickly check or uncheck them. Works with radio buttons as well.
15,988 人のユーザー
Tabby - Window & Tab Manager
Tabby helps you manage a lot of windows and tabs easily; it can help you open, close, move, pin, and do many other things on tabs and windows quickly. With Tabby, you can even save all you windows and tabs for later with just one click!
13,471 人のユーザー
Firefox Multi-Account Containers
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs. Cookies are separated by container, allowing you to use the web with multiple accounts and integrate Mozilla VPN for an extra layer of privacy.
402,655 人のユーザー
![Volume Control [Boost volume]](https://addons.mozilla.org/user-media/addon_icons/2750/2750023-64.png?modified=33d02c4f){kind=icon}
