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is an Award Winning browser extension for the Thunderbird, Postbox and Spicebird email clients.

Utilizing the Mozilla Gecko engine, ThunderBrowse provides instant access to your favorite websites quickly, safely, and easily.


Welcome to ThunderBrowse.com, the homepage of the popular, Mozilla recommended, ThunderBrowse extension for Thunderbird and Postbox.

ThunderBrowse allows you to browse the web quickly and easily all within your Thunderbird/Postbox/Spicebird email client, without having to load any other applications. You'll save more RAM by using it over other browsers!

It's fast, free, easy and safe. Try ThunderBrowse today!

ThunderBrowse 3.82 Released!

ThunderBrowse 3.82 has been released on AMO. It contains fixes for some compatibility issues and adds support for Thunderbird 16.

Read more at the ThunderBlog