Release Notes

Thunderbird Desktop

Version 131.0 | Released October 1, 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.

Thunderbird version 131.0 is available for testing purposes only.

System Requirements: Details

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

What’s Fixed

fixed

Event and Task reminders contained incorrect sleep duration units

fixed

Thunderbird could crash when using return receipt with OWL add-on

fixed

Thunderbird could crash on startup

fixed

Opening an EML file with a 'mailto:' link did not work

fixed

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

fixed

Saving an EML file that was opened from a file did not work

fixed

Delete confirmation could appear twice when using shift+delete

fixed

"Mark All Read" on Quick Filter results marked all emails in folder as read

fixed

Collapsed POP3 account folder was expanded after emptying trash on exit

fixed

Messages deleted from a cross-folder search view could not be undeleted

fixed

"Mark Folder Read" on a cross-folder search marked all underlying folders read

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

Performance could be degraded when using cards view with tags

fixed

Unable to "Decrypt and Open" an attached OpenPGP key file

fixed

Unable to open/view attached OpenPGP encrypted messages

fixed

Stored draft messages were not encrypted when recipients were not specified

fixed

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

fixed

Changing a saved draft's send identity did not prompt to save the modified message

fixed

Subject could disappear when replying to a message saved in an EML file

fixed

"Attach this image to the message" checkbox not checked when inserting image

fixed

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

fixed

Some users were unable to log in to Microsoft 365

fixed

OAuth2 authentication method was not available when adding SMTP server

fixed

Thunderbird crashed when run from flatpak installation

fixed

Matrix end-to-end encryption tab in account settings could show for XMPP account

fixed

Participant and message were not populated when user left the room using XMPP

fixed

Flatpak release notes URL was incorrect

fixed

Unable to subscribe to .ics calendars in some situations

fixed

Visual and UX improvements

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