Decentraleyes
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。
230,570 个用户
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.
32,385 个用户
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.
208,130 个用户
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
204,165 个用户
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.
32,385 个用户
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.
54,395 个用户
AdBlock 广告过滤器 版
最受欢迎的 Chrome 和 Safari 广告拦截工具，现在也支持 Firefox 啦！ 可以拦截所有网页上的所有广告，以及 Facebook、YouTube 和 Hulu 上的广告。 还可以让您的浏览器变得更快！ 大部分广告根本就不会被下载，节约您的时间和带宽。
968,777 个用户
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
27,350 个用户
Steam URL Opener
Allows you to open URLs inside Steam Client to save the hassle of logging in normal browser.
1,470 个用户
FoxyTab
Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer
16,463 个用户
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
1,206,808 个用户
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.
298,736 个用户
Google Container
THIS IS NOT AN OFFICIAL ADDON FROM MOZILLA! It is a fork of the Facebook Container addon. Prevent Google from tracking you around the web. The Google Container extension helps you take control and isolate your web activity from Google.
14,949 个用户