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Mozilla Thunderbird, Portable Edition 28.0 Beta 1

Thunderbird logoMozilla Thunderbird, Portable Edition Test is a test version of the popular Thunderbird email client bundled with a PortableApps.com 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 Mozilla Thunderbird, Portable Edition.

Download Mozilla Firefox, Portable Edition

Version 28.0 Beta 1 for Windows, English
19MB download / 40MB installed (Details)

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

Mozilla Thunderbird, Portable Edition 18.0 Beta 1 Localizations

The current 28.0 Beta 1 release is English only


osi_certified.pngThough there is no support specifically for the test versions of Thunderbird, the standard support information should suffice. Please visit Thunderbird Portable Support.

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