Release Notes

Thunderbird Desktop

Version 115.1.0 | Released August 1, 2023

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.

Thunderbird version 115 is only offered as direct download from thunderbird.net and not as an upgrade from Thunderbird version 102 or earlier. A future release will provide updates from earlier versions.

For more on all the new features in Thunderbird 115, see What’s New in Thunderbird 115.

System Requirements: Details

  • Windows: Windows 7 or later
  • Mac: macOS 10.12 or later
  • Linux: GTK+ 3.14 or higher

What’s Changed

changed

Quick Filter bar is now hidden by default

changed

Mail tab toolbar and Unified toolbar heights adjusted to be more consistent

What’s Fixed

fixed

Message-ID header used account domain instead of "From" field domain

fixed

Zooming did not work in multi-message view

fixed

"Clear Recent History" dialog did not resize correctly to fit content

fixed

Tooltip containing full message title did not appear when hovering over message in card view

fixed

Message List column headers became transparent in increased contrast mode

fixed

Message List card padding was incorrect in compact view

fixed

Total message counts and folder sizes were also hidden when "Hide Local Folders" was selected in Folder Pane options

fixed

Messages in deeply nested IMAP folders were inaccessible

fixed

Thunderbird Flatpak could not be executed from terminal using command "thunderbird"

fixed

CardDAV address book dialog did not resize properly to show all available address books

fixed

Various visual and style fixes

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