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DownThemAll! 제작: Nils Maier, Federico Parodi, 그 외 여러명

The first and only download manager/accelerator built inside Firefox!

모음집 제작자의 메모 多线程下载利器！

User Agent Switcher 제작: chrispederick

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

ReminderFox 제작: Tom Mutdosch, Daniel Lee, 그 외 여러명

ReminderFox zeigt und verwaltet Listen von Erinnerungen und Aufgaben. ReminderFox nutzt einfach zu verwendende Listen mit Warnungen/Alarmen, um Sie an alle Ihre wichtigen Termine zu erinnern.
Reminderfox synchronisiert auch mit anderen Kalendern

모음집 제작자의 메모 备忘提醒好工具！

Gmail Manager 제작: Todd Long

The original Gmail notifier for multiple accounts. Allows you to receive new mail notifications along with viewing account details including unread messages, saved drafts, spam messages, labels with new mail, space used, and new mail snippets.

모음집 제작자의 메모 Gmail 多账户提醒工具！

Mozilla Labs - Jetpack Prototype 제작: Mozilla Labs

Jetpack Prototype is an experiment in making it easy to build Firefox add-ons using common web technologies.

모음집 제작자의 메모 Firefox新版插件管理器！