为 Firefox 增添功能，让上网变得更快、更安全，乐趣十足。
保护您免受集中式的内容交付网络（CDN）的跟踪。它可以拦截许多种链向 CDN 的请求，转而指向本地提供的文件，从而防止网站功能受损。辅助常规的内容过滤规则。
Ghostery 是强大的隐私保护扩展程序。 拦截广告，停止跟踪器，提高网站速度。
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.
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.
View archived and cached versions of web pages on 10+ search engines, such as the Wayback Machine, Archive․is, Google, Bing, Yandex, Baidu and Yahoo.
Tomato Clock is a simple browser extension that helps with online time management.
Automatically learns to block invisible trackers.
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
Some sites may not work with Firefox for Android video background play feature. This add-on provides a quick fix by blocking the Page Visibility API and the Fullscreen API.