Beta Notes

Thunderbird Desktop

Version 134.0beta | 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.

These notes apply to Thunderbird version 134 beta 4 released December, 11, 2024.

System Requirements: Details

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

What’s New

new

Thunderbird now has a notification system for real-time desktop alerts

1922551

new

Add end of year donation appeal

1925389

What’s Fixed

fixed

New mail notification could show for the wrong folder, causing repeated alerts

1926462

fixed

Subscribe window "Show items that contain" should not have been shown for IMAP

1630286

fixed

Downloading message headers from a newsgroup could cause a hang

1931661

fixed

POP3 inbox could show new mail with no subject, no sender, and date 1970-01-01

1911477

fixed

"mailto:" links did not apply the compose format of the current identity

550414

fixed

Dragging embedded images from a message to a compose window was not possible

1930447

fixed

Authentication failure of AUTH PLAIN or AUTH LOGIN did not fall back to USERPASS

1928026

fixed

APOP authenication for POP3 did not prompt for corrected password

1928803

fixed

XMPP chat did not display messages sent inside a CDATA element

1929011

fixed

Release channel incorrectly opened whatsnew page

1928399

fixed

Today pane agenda sometimes scrolled for no apparent reason

1930588

fixed

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

1927760

fixed

CalDAV calendars without offline support could degrade start-up performance

1933099

fixed

Visual and UX improvements

1924047 1927379 1927871 1930363 1930589

Fixed in beta 2

What’s Fixed

fixed

In-app notification messages did not display correctly in dark mode

1933509

Fixed in beta 3

What’s Fixed

fixed

In-app notification close button alignment not consistent across platforms

1934756

fixed

Message list performance slow when many updates happened at once

1933104

fixed

Large virtual folders could be very slow

1830145

Fixed in beta 4

What’s Fixed

fixed

Clicking the context menu "Reply" button resulted in "Reply-All"

1935883

fixed

macOS shortcut CMD+1 did not restore the main window when it was minimized

1857953

fixed

Thunderbird could crash on startup when using POP3

1934417

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