Beta Notes

Thunderbird Desktop

Version 110.0beta | Released January 19, 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.

These notes apply to Thunderbird version 110 beta 4 released February 7, 2023.

System Requirements: Details

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

What’s New

new

Thunderbird now includes the option to send a minimal user agent header, or no header at all

1114475

new

Thunderbird now notifies the user if a message includes nested encryption, and allows viewing each encrypted part of the message

1746579

new

OpenPGP signature dates are now shown for signed messages

1775628

new

Thunderbird can now individually reload remote calendars

729407

new

Added option to always show system tray icon on Windows

1727874

What’s Changed

changed

S/MIME encryption reminder re-enabled

1808295

What’s Fixed

fixed

IMAP autosync sometimes stopped after restoring computer from sleep or hibernation

1804374

fixed

POP3 messages were deleted from server when attachments were detached from the message in Thunderbird

1528297

fixed

Thunderbird did not decrypt OpenPGP messages with an additional outer signature layer

1594253

fixed

"Get Messages" did not retrieve messages from Gmail accounts using a local folder as a deferred inbox

1799106

fixed

Switching identities caused remote images in HTML signatures to not be shown (since Thunderbird 102.6.1)

1807200

fixed

Changing the default search engine did not persist after closing "Settings" tab

1807990

fixed

Thunderbird incorrectly addressed all XMPP pings to the connected XMPP server, rather than the originator of the ping

1806631

fixed

Task previews did not show HTML formatting

1739877

fixed

Tooltips for "Show/Hide" calendar toggle did not display

1809557

Fixed in beta 2

What’s Fixed

fixed

Microsoft Office 365 accounts were unable to authenticate

1810760

fixed

Messages signed with revoked S/MIME certificates were displayed as correctly signed

1769000

fixed

Window titlebar buttons (minimize/maximize/close) were not displayed in Windows 10 "Dark" color mode

1810961

No patches applied in beta 3

Fixed in beta 4

What’s Fixed

fixed

Unread message count and folder name formatting did not display correctly due to autosync

1802295

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