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Thunderbird, Portable Edition Test

email client

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Version 121.0 Beta 1 for Windows x64, English
102MB download / 240MB installed
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Runs anywhere (cloud, removable, local) without 'installing'. Use the Platform for easy installs and automatic updates.

Also Available: Thunderbird Portable Stable

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Thunderbird, Portable Edition Test is a test version of the popular Thunderbird email client bundled with a Launcher as a portable app that is being made available for testing purposes only, and is intended for extension developers and our testing community. For everyday use, please use Thunderbird, Portable Edition.


App Notes

Install Note: This will install alongside a Thunderbird, Portable Edition installation by default in a ThunderbirdPortableTest directory. It also supports upgrading existing installations by changing the location.

Download Details

Open Source Initiative

Mozilla®, Thunderbird® and the Thunderbird logo are registered trademarks of the Mozilla Foundation and are used with permission.