Release Notes

Thunderbird Desktop

Version 45.1.0 | Released May 10, 2016

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.

What’s Fixed

fixed

Drag & Drop a contact name from Thunderbird address book (list view) to address box in a new message “compose” window failed.

fixed

UI elements became larger when moused over on retina displays/monitor on Mac OS X

fixed

Automatic correspondents column upgrade disabled

fixed

DIGEST-MD5 authentication in JS-XMPP failed for some users (now disabled).

fixed

Font indicator in compose falsely claimed certain fonts were not installed.

fixed

Printing failed in composition window.

fixed

Various security fixes

fixed

Various improvements in handling of message compose in paragraph mode.

Known Issues

unresolved

Email with signature and safe HTML elements is sent as HTML, despite "Delivery Format: Auto-detect" option

Learn What’s Next

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