Thunderbird 45.5 email client released

Martin Brinkmann
Nov 20, 2016
Updated • Jun 26, 2017
Email, Thunderbird

A new version of the popular desktop email client Thunderbird has just been released. Thunderbird 45.5 fixes several issues but does not introduce new features.

The Thunderbird 45.5 release notes list six items of which two are marked as changed, and four as fixed.

The new release is a bug fix release mostly; it does not fix any security issues or introduce new features. In fact, it brings back the behavior of Thunderbird 24 for a feature.

Thunderbird 45.5.0

thunderbird 45.5

Probably the biggest change is a return to Thunderbird 24 behavior when it comes to address entries in the email client.

IMPORTANT: Changed recipient address entry: Arrow-keys now copy the pop-up value to the input field. Mouse-hovered pop-up value can no longer be confirmed with tab or enter key. This restores the behavior of Thunderbird 24.

You may have difficulties finding out what changed exactly just from reading the note. Basically, what the change does is the following: that the selected suggestion (via arrow keys), is the same as the filled value in the email client's recipient field.

Thunderbird displayed different values for filled and selected items up until now (after the release of Thunderbird 24 to be precise).

Two different terms are used when it comes to the recipient field in the email client:

  • Filled value, which is the value that Thunderbird displays in the To, BCC or CC fields.
  • Selected value, which is the value that is selected in the list of address suggestions.

These values could have been different in the past, and that is what Mozilla fixed. Hovered items can no longer be selected with the Enter or Tab key.

Check out this bug on Bugzilla@Mozilla for additional information.

Other Thunderbird 45.5 changes

  • Support changes to character limit in Twitter
  • Reply with selected text containing quote resulted in wrong quoting level indication
  • Email invitation might not be displayed when description contains non-ASCII characters
  • Attempting to sort messages on the Date field whilst a quick filter is applied got stuck on sort descending
  • Mail address display at header pane displayed incorrectly if the address contains UTF-8 according to RFC 6532

You can check out the full release notes for Thunderbird 45.5.0 here.

Thunderbird 45.6.0

A new version of Thunderbird, version 45.6.0, was released on December 28, 2016 to the release channel.

The update fixes an issue where the system integration dialog was shown every time Thunderbird was starting.

Several security issues are fixed in Tunderbird 45.6.0 on top of that.

The release notes are available here.

Thunderbird 45.5 email client released
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Thunderbird 45.5 email client released
A new version of the popular desktop email client Thunderbird has just been released. Thunderbird 45.5 fixes several issues but does not introduce new features.
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  1. Bugs said on November 23, 2016 at 6:56 am

    I can’t connect to my one hotmail account after the upgrade on Windows. Outlook still works. Linux version still works. Have to go back to the email via the browser. Password is correct. No changes were made. I have no idea what to do.

    1. No_Bugs said on November 23, 2016 at 10:01 am

      Ok. Working now. Removed the account and added to thunderbird again. Looks like something got corrupted during the upgrade.

  2. Dwight said on November 22, 2016 at 6:32 am

    Thunderbird is useless unstable crap on my computers. It crashes shortly after installing. I use the very stable free version of Incredimail. You’ll love it’s crazy animated email notifiers.

  3. Anonymous said on November 21, 2016 at 6:38 am

    Only thing I can use at work because of portability….So this or nothing :)

    1. Anonymous said on November 21, 2016 at 4:00 pm
  4. Nebulus said on November 20, 2016 at 8:50 pm

    Too buggy for multiple accounts to be of real use for me. It’s a pity that they don’t bother with bug fixes anymore.

    1. Sinon said on November 21, 2016 at 12:58 am

      If it’s too buggy for you then help them, don’t just complain about it. Mozilla has decided to no longer develop Thunderbird so it’s up too the community to help make it better.

      1. David said on November 21, 2016 at 3:11 pm

        What makes you think he’s a programmer, or is skilled in any discipline that would be relevant? Many of Mozilla’s customers do other things, such as sewing, making music, analysing DNA, repairing cars…

  5. AAA said on November 20, 2016 at 3:35 pm

    Thunder…..thunder……..thunder-bird Ohhhhhhhhhhhhhhhhhhh.

    Never mind. No big changes or updates. Looks like Mozilla will let this beauitful email app go! :(

    1. Sören Hentzschel said on November 20, 2016 at 10:45 pm

      Of course no big changes, there is only one feature update per year. And there are never new features in a point release. The next feature release will be Thunderbird 52.

      1. Jan said on November 21, 2016 at 3:02 pm

        Except some creepy feature like upload to a file hoster or a chat client…

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