Download Thunderbird 9.0 Beta 1

Thunderbird 9.0 Beta 1

User Rating
Thank you for voting
By Mozilla Organization  (Open Source)
Latest Version
Thunderbird 38.0 Beta 2

* Added an opt-in system for users to send performance data back to Mozilla to improve future versions of Thunderbird
* Better keyboard handling for attachments
* Windows users can hide the menu bar (and show it with the "alt" key)
* Several user interface fixes and improvements
* and numerous other platform fixes