Open Source software is software with source code that anyone can inspect, modify or enhance. Freeware products can be used free of charge for both personal and professional (commercial use).

Thunderbird, Portable Edition is available for immediate download from the Thunderbird, Portable Edition Test homepage.Freeware programs can be downloaded used free of charge and without any time limitations. And it's in Format, so it automatically works with the Platform including the Menu and Backup Utility.

It supports upgrades by installing right over an existing copy, preserving all your email and settings. Thunderbird, Portable Edition is packaged in a Installer so it will automatically detect an existing installation when your drive is plugged in. Plus, the portable version leaves no personal information behind on the machine you run it on, so you can take your email and adress book with you wherever you go. It has lots of great features including quick message search, customizable views, support for IMAP/POP, RSS support and more. Thunderbird is the safe, fast email client that's easy to use. Update automatically or install from the portable app store (advanced apps enabled) in the Platform. Mozilla®, Thunderbird® and the Thunderbird logo are registered trademarks of the Mozilla Foundation and are used under license. And it's open source and completely free.

It's packaged in Format so it can easily integrate with the Platform. Note that the current beta is English only. This package allows you to test the upcoming version without impacting your standard portable or local install of Thunderbird. It's the popular Thunderbird email client bundled with a launcher as a portable app.

A new version of Thunderbird®, Portable Edition Beta has been released.

Mozilla Thunderbird 115.1.1 downloading