Release Notes

Thunderbird Desktop

Version 128.2.1esr | Released September 16, 2024

Check out the notes below for this version of Thunderbird. As always, you’re encouraged to tell us what you think, 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

Message window froze after clicking 'mailto:' link containing child elements

fixed

"Grouped By Sort" state was not preserved for unified and virtual folders

fixed

Repairing local folders caused messages in folder to temporarily disappear

fixed

Repairing an IMAP folder resulted in incorrect total and unread message counts

fixed

Quick Filter reset sort type in threaded views sorted by "Order Received" ascending

fixed

Display names for SMTP servers could be incorrectly formatted as a date

fixed

Importing profiles from SeaMonkey did not work in certain circumstances

fixed

Calendar events filter no longer allowed searching past or all events

fixed

Calendar updates were not added to cache when Thunderbird was offline

fixed

Visual and UX improvements

Learn What’s Next

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