附加组件

User Agent Switcher 作者：chrispederick

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Session Manager 作者：Michael Kraft

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

HttpFox 作者：Martin Theimer

Firefox 的一个HTTP分析器扩展。

AutoProxy 作者：lovelywcm

你要翻墙对吗？你想让它聪明点：该翻墙时才翻，不要所有的网站都用代理，对吗？你还想让它再聪明一点：该不该翻墙它自己知道，不用什么事都要你跟它讲，对吗？ AutoProxy 就是为您设计的：）

Quick Locale Switcher 作者：ppclick

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.

Private Tab 作者：Infocatcher

Adds private tabs.

Mycroft Project 作者：Mycroft Project

The Mycroft Project is a collection of OpenSearch & Sherlock Search Engine Plugins for your internet browser.

about:addons-memory 作者：Nils Maier

Adds an about:addons-memory page that details add-on memory usage

Extension Auto-Installer 作者：Wladimir Palant

Important note: This extension will not work in Firefox 57 and above. Providing this functionality in Firefox is no longer possible, the extension is discontinued.

Developer Assistant 作者：Ted Mielczarek, Gavin Sharp, 等

A suite of tools for developers.

Restartless Restart 作者：Erik Vold

This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.

XPCOMViewer 作者：Ondřej Doněk

XPCOMViewer is tiny tool for exploring XPCOM components.

GitHub Extension Installer 作者：Diego Casorran

Install Browser Extensions straight from GitHub Repositories

colour fox 作者：r@hees

Moon In The Trees 作者：Poppy