Thunderbird Beta Notes

Version 52.0beta, first offered to Beta channel users on January 27, 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.

These release notes apply to Thunderbird version 52 beta 4 released Feb 28th, 2017.

What’s New

  • New

    Optionally remove corresponding data files when removing an account from Thunderbird

  • New

    Possibility to copy message filter

  • New

    Calendar: Event can now be created and edited in a tab

  • New

    Calendar: Processing of received invitation counter proposals

  • New

    Chat: Support Twitter Direct Messages

  • New

    Chat: Liking and favoriting in Twitter

  • Changed

    IMPORTANT: The way images are included in a compose window has changed. Images are now included as data URIs and not as references to parts of other messages or operating system files. This allows better interoperability with office packages such as MS Office or LibreOffice. Images linked from locations on the internet will no longer be downloaded and attached to the message automatically. This can be changed for each image individually via the Image Properties dialog or globally by setting the preference mail.compose.attach_http_images.

  • Changed

    On Linux PulseAudio is now required to play sound

  • Changed

    Messages in IMAP folders read on external device are now filtered by default

  • Changed

    Chat: Removed Yahoo! Messenger support (since Yahoo removed support)

  • Fixed

    Crash when viewing certain IMAP messages and various crashes on Mac

  • Fixed

    Message preview pane non-functional after IMAP folder was renamed or moved

  • Fixed

    Editing in paragraph format: Pressing Shift+Enter sometimes doesn't move the cursor to the next line

  • Fixed

    Paste as quotation doesn't always work

  • Fixed

    Long lines in plain text replies not properly wrapped

  • Fixed

    Undesired white-space before signature in paragraph mode

  • Fixed

    IMAP message part caching

  • Fixed

    Links with escaped non-ASCII (international) characters can't be clicked

  • Fixed

    Calendar: Events specified in timezone "local time" generate alerts in UTC time