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As of July 2012, Thunderbird has transitioned to a new governance model, with new features being developed by the broader free software and open source community, and security fixes and improvements handled by Mozilla.

Thunderbird is a free, open-source, cross-platform e-mail and news client developed by the Mozilla Foundation. The project strategy is modeled after Mozilla Firefox, a project aimed at creating a Web browser.

What's New

Version 38.2.0:
  • [Changed] Hardware acceleration is now disabled by default to avoid crashing Thunderbird
  • [Fixed] A few bugs have been fixed to avoid crashing Thunderbird
  • [Unresolved] The "maildir" storage type can no longer be set through the UI due to various issues. Power users can still set the storage type using the config editor.


  • OS X 10.6 or later

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4 193


Current Version (38.x)


Downloads 355,097
Version Downloads 3,386
Type Internet / Email
License Free
Date 18 Aug 2015
Platform Intel 64 / OS X / Intel 32
Price Free
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