Tenfourbird ist inoffiziell Build von Mozilla Thunderbird für PowerPC-basierten Mac OS X.

Tenfourbird verwendet Changesets der TenFourFox.
Neueste Version 38.9.0.
Es gibt auch einen deutschen langpack.


Die Systemvoraussetzungen sind nicht definiert

Veröffentlicht: 2016-02-19 18:00
Tenfourbird-38 38.6.0 (8 files Verstecken)


If you find bug, please report to Forums or Ticket system.


You can check integrity of files by RIPEMD160 or SHA512 hashes. It signed by OpenPGP key of t_mrc-ct[at] The public key could get from here or OpenPGP Keysever.


All langpacks have not been updated since v38.4.0.

Known Issues
  • Auto Updater does not fully supported. (Update Checker is supported. But you need to download and install new version manually.)
  • Tenfourbird doesn't contains Enigmail add-on since v17.0. It provide separately.
  • Enigmail for Tenfourbird 10.0.* or before does not update automatically. You need to download and install Enigmail for Tenfourbird manually.
  • Sudden message deletion issue is reported. I think it may related Mbox compaction. I recommend mail backup before folder compaction.
  • Chat communication disconnects regularly. (forum)
  • There are also open tickets reported.
What is Tenfourbird based on?
See also


  • Update codebase to Thunderbird 38.6.0 and TenFourFox 38.6.1
  • Update codebase to Thunderbird 38.5.1 and TenFourFox 38.5.0
  • Fix Cert error on update dialog (ticket:35740)
  • Update codebase to Thunderbird 38.4.0 and TenFourFox 38.4.0
  • Update codebase to Thunderbird 38.3.0 and TenFourFox 38.3.0
38.2.0 beta2
  • Update codebase to Thunderbird 38.2.0 and TenFourFox 38.2.1
38.1.0 beta1
  • Disable TabsInTitlebar because of traffic light buttons disappear (See also: Tffx Issue 247, Tffx Issue 282)
  • Update codebase to Thunderbird 38.1.0 and TenFourFox 38.1.1b2
38.0 beta
  • Release skipped.
See also