Thunderbird Notes

Version 45.0, first offered to Release channel users on April 12, 2016

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

    Add a Correspondents column combining Sender and Recipient

  • New

    Use OpenStreetmap for maps (even allow the user to choose from list of map services)

  • New

    Allow editing of From when composing a message.

  • New

    Allow copying of name and email address from the message header of an email

  • New

    Mail.ru supports OAuth authentication.

  • New

    Implement option to always use HTML formatting to prevent unexpected format loss when converting messages to plain text.

  • New

    Return/Enter in composer will now insert a new paragraph by default (shift-Enter will insert a line break)

  • New

    Add dropdown in compose to allow specific setting of font size.

  • New

    Allow spell checking and dictionary selection in the subject line

  • New

    Improved options for remote content exceptions (but previous settings based on the sender's email address are not migrated, so these need to be added again by users).

  • New

    Much better support for XMPP chatrooms and commands.

  • Fixed

    Fixed: When sending e-mail which was composed using Chinese, Japanese or Korean characters, unwanted extra spaces were inserted within the text.

  • Fixed

    Fixed: Drag and drop of multiple attachments failed to OS file folder.

  • Fixed

    Fixed: Box.com attachments failed to upload.

  • Fixed

    Fixed: New emails into a mailbox did not adhere to sort order by received.

  • Fixed

    Fixed: Grouped By view sort direction change was broken, plus enabled custom column grouping.

  • Fixed

    Properly preserve pre-formatted blocks in message replies.

  • Fixed

    Copy/paste from a plain text editor lost white-space (multiple spaces/blanks, tabs, newlines)

  • Fixed

    "Open Draft"/"Forward"/"Edit As New"/"Reply" created message composition with incorrect character encoding.

  • Fixed

    Crashed in some cases while parsing IMAP messages.

  • Fixed

    External images not displayed in reply/forward

  • Fixed

    When saving a draft that is edited as new message, original draft was overwritten.

  • Fixed

    Spell checker checked spelling in invisible HTML parts of the message.

  • Fixed

    XMPP had connection problems for users with large rosters

  • Fixed

    Various security fixes

Known Issues

  • unresolved

    Outlook and Eudora import non-functional.

  • unresolved

    UI elements become larger when moused over on retina displays/monitor on Mac OS X or windows moved between lowdpi/hidp.