Thunderbird Desktop
Version 138.0beta | Released April 2, 2025
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 138 beta 1 released April 2, 2025.
System Requirements: Details
- Windows: Windows 10 or later
- Mac: macOS 10.15 or later
- Linux: GTK+ 3.14 or higher
What’s New
new
New mail notification customization added to macOS Settings
new
New mail alert now includes message disposition buttons
What’s Changed
What’s Fixed
fixed
Menu items to manage folders were not disabled in offline mode
fixed
Unchecking "Show all headers" in Message Header Settings closes dialog
fixed
Wrong day of week displayed for some emails
fixed
Preference to show notifications for x seconds was not disabled when system notifications were disabled
fixed
macOS notifications displayed two logos
fixed
Message preview truncation in notifications improved
fixed
Added delay to built-in notifications when new profile is created in offline mode
fixed
OpenPGP key was not updated when an accepted key was reimported with new identities
fixed
Dual signed (PGP and S/MIME) emails were not displayed
fixed
CardDAV synchronization to Zimbra server failed
fixed
Nickserv messages appeared during successful auth
fixed
Clicking a mid: link in Calendar opens two copies of the message
fixed
Some calendar requests were blocked due to opaque responnse blocking
fixed
Keyboard navigation was not possible when first header button was disabled
