Release Notes

Thunderbird Desktop

Version 38.1.0 | Released July 9, 2015

Check out the notes below for this version of Thunderbird. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla.

See also the release notes for the Firefox 38.1.0 esr.Thunderbird 38.1.0 contains underlying code that is based off of update from Thunderbird 31 to 38.

What’s Fixed


OAuth2 authentication for GMail does not work when specified server is or (bug 1176773)


Doesn't display GB2312 encoded texts correctly for Chinese Characters (bug 1174580)


Cannot send email through exchange server (NTLM) (bug 1174159)


Cross-posts won't send because Newsgroups: groups are separated with comma+space, not just comma (bug 1151448)


Copy/Paste into plain text editor deletes newlines from quoted text (bug 1143570)

Known Issues


Import from Outlook and Eudora disabled, code currently not working (bug 1175055)

Learn What’s Next

Thunderbird keeps getting better. Subscribe to our newsletter and follow us on social media to stay informed.