Release Notes

Thunderbird Desktop

Version 128.5.0esr | Released November 26, 2024

Check out the notes below for this version of Thunderbird. As always, you’re encouraged to tell us what you think, ask for help, or file a bug in Bugzilla.

For help and a quick start on Thunderbird 128, see Thunderbird 128 Nebula FAQ

For more on all the new features in Thunderbird 128, see What’s New in Thunderbird 128.

System Requirements: Details

  • Windows: Windows 10 or later
  • Mac: macOS 10.15 or later
  • Linux: GTK+ 3.14 or higher

What’s Fixed

fixed

IMAP could crash when reading cached messages

fixed

Enabling "Show Folder Size" on Maildir profile could render Thunderbird unusable

fixed

Messages corrupted by folder compaction were only fixed by user intervention

fixed

Reading a message from past the end of an mbox file did not cause an error

fixed

View -> Folders had duplicate F access keys

fixed

Add-ons adding columns to the message list could fail and cause display issue

fixed

"Empty trash on exit" and "Expunge inbox on exit" did not always work

fixed

Selecting a display option in View -> Tasks did not apply in the Task interface

Learn What’s Next

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