Thunderbird Beta Notes

Version 41.0beta, first offered to Beta channel users on September 10, 2015

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.

What’s New

  • New

    Visual appearance improved on Windows 10

  • Fixed

    Spellchecker no longer jumps between languages

  • Fixed

    Proxy is taken into account for pop3s protocol

  • Fixed

    (Right-)Clicking on a newsgroup now allows directly composing a message again

  • Fixed

    Importing to the address book from CSV now works with international characters

  • Fixed

    Thunderbird no longer crashes when executing filter rules when using maildir

  • Fixed

    When using the maildir storage format, the INBOX folder is no longer deleted

  • Fixed

    Emails with long References headers are now decoded correctly

  • Fixed

    Checking for new messages correctly works after hibernation again

Known Issues

  • unresolved

    In contrast to Thunderbird 38, hardware acceleration is still enabled by default. If you are experiencing crashes, please disable it in the preferences.