Thunderbird 3.1 Beta 2 Now Available

Mozilla is happy to announce Thunderbird 3.1 Beta 2, an early version of the next Thunderbird.

Thunderbird 3.1 Beta 2, available here for download, is for testers, extension developers, and other people who are curious to follow the development of the next release of Thunderbird.

Thunderbird 3.1 Beta 2 includes initial versions of new features that build on the current release, Thunderbird 3. We expect to release further interim releases as we work towards a major new release of Thunderbird.

Thunderbird 3.1 Beta 2 is built on top of the Gecko 1.9.2 platform. The main goals of this release is to find out about possible problems caused by the changes in the underlying platform. Notable changes include:

  • New quick filter toolbar.
  • New migration assistant.
  • Improved support for Personas.
  • Several fixes to improve upgrading from Thunderbird 2.
  • Several design improvements and corrections to the interface.
  • Stability and memory improvements.



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