Thunderbird Notes

Version 52.1.1, first offered to Release channel users on May 15, 2017

Check out "What’s New" and "Known Issues" for this version of Thunderbird below. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla. If interested, please see the complete list of changes in this release.

System Requirements:
Window: Windows XP, Windows Server 2003 or later
Mac: Mac OS X 10.9 or later
Linux: GTK+ 3.4 or higher
Details here.

Please refer to Release Notes for version 52.0 to see the list of improvements and fixed issues.

What’s New

  • Fixed

    Large attachments may not be shown or saved correctly if the message is stored in an IMAP folder which is not synchronized for offline use

  • Fixed

    Unable to load full message via POP if message was downloaded partially (or only headers) before

  • Fixed

    Some attachments can't be opened or saved if the message body is empty

  • Fixed

    Crash when compacting IMAP folder

Known Issues

  • unresolved

    Messages sent via the Simple MAPI interface are forced to HTML. Will be fixed in next release.

  • unresolved

    Large number of blank pages being printed under certain circumstances. To fix this problem, remove all printer specific preferences in the configuration editor.

  • unresolved

    Crash due to incompatibility with McAfee Anti-SPAM add-on. Workaround: Start in safe mode and disable McAfee Anti-Spam Extension