Firefox Add-ons & Plugins

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Thunderbird Conversations

Thunderbird Conversations add-on provides a conversation view for Thunderbird, including contacts tooltips, attachment thumbnails,...

October 18, 2020 By Mozilla


Greasemonkey is a Firefox extension that lets you add bits of DHTML (user scripts) to any Web page to change its behavior. In much...

October 11, 2020 By Mozilla

QuickDrag WE for Mozilla Firefox

Extends the function of the drag-and-drop mouse gesture so that it can be used to load URLs, do a web search of selected text on a...

June 4, 2020 By Mozilla


Using interactive visualizations, Lightbeam enables you to see the first and third party sites you interact with on the Web. As you...

June 4, 2020 By Mozilla

Mozilla Lightning

Mozilla Lightning is an extension for Mozilla Thunderbird and Mozilla SeaMonkey that adds an integrated calendar. It is based on the...

June 4, 2020 By Mozilla Calendar Project


Firekeeper is an Intrusion Detection and Prevention System for Firefox. It is able to detect, block and warn the user about malicious...

June 4, 2020 By Mozilla

Facebook Container

The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook. Facebook Container...

June 3, 2020 By Mozilla

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