Beta Notes

Thunderbird Desktop

Version 112.0beta | Released March 15, 2023

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.

These notes apply to Thunderbird version 112 beta 7 released April 5, 2023.

Thunderbird 111 beta enabled the UI features of "Supernova". "Supernova" has an updated user interface, designed to be more modern, customizable, and with code that is easier to maintain and improve. "Supernova" is slated to ship with Thunderbird 115 in July.

Learn more about "Supernova"

Betas 111 and 112 may contain more bugs than normal, but with your help it will quickly improve over time. The "Supernova" UI is planned to be complete for initial release of beta 114.

Follow the details in the Thunderbird beta topicbox group.

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 will now send a minimal user-agent header by default

new

Thunderbird can now open external .eml files in a tab

new

Thunderbird now includes a "app.update.log.file" preference to enable logging of updates

new

Thunderbird now uses a non-private browser for OAuth login, allowing login to Microsoft Office 365 with Conditional Access Policies enabled

new

Thunderbird can now open OpenPGP Key Manager dialog from commandline using "-keymanager" option

new

Candidate OpenPGP keys are now automatically discovered from GnuPG keyring, if external GnuPG is enabled

new

Thunderbird now supports option to always send public key with autocrypt header

What’s Changed

changed

S/MIME signatures using the MD5 hash algorithm are now rejected

What’s Fixed

fixed

Messages with missing or corrupt "From:" header did not display message header buttons

fixed

Automatic POP3 message retrieval did not release folder lock after network error until "Get Messages" was manually clicked

fixed

Automatic detection of SSL/TLS connections during account creation was broken

fixed

Automatic detection of character set when quoting a message did not work

fixed

S/MIME signatures were not displayed correctly in nested messages

fixed

Thunderbird will now check to see if "UTF8=ACCEPT" is supported by IMAP server before enabling it

fixed

Address Book integration did not work with macOS 11.4 Bug Sur

fixed

Message List no longer fired focus events for screen reader users while navigating

fixed

Collapsing the root node of the Folder Pane using the left arrow key caused keyboard navigation of the Folder Pane to stop working

fixed

Various Folder Pane improvements

fixed

Various Message List improvements

fixed

Various Message Reader improvements

fixed

Various Message Compose window improvements

Fixed in beta 2

What’s Fixed

fixed

Clicking "Copy text to clipboard" on "Troubleshooting Information" page did not copy anything to the clipboard

fixed

Various visual and UX improvements

New, Changed, and Fixed in beta 3

What’s New

new

Additional Folder modes added to Folder Pane options meatball menu

What’s Changed

changed

New messages will automatically select S/MIME if configured and OpenPGP is not

What’s Fixed

fixed

"Read Messages" button in Account Central did not work

fixed

Converting an email to an event with "Convert To > Event" did not work

fixed

Message context menus in synthetic view results were incomplete

fixed

Message lists in Vertical view were missing message status and attachment indicators

fixed

Many visual and UX fixes and improvements

New, Changed, and Fixed in beta 4

What’s New

new

Added "New" indicator to vertical view of Message Reader

What’s Changed

changed

"Unread" and "Favorite" folder tree mode improvements

What’s Fixed

fixed

Creating a saved search added the virtual folder twice

fixed

Unselectable GMail folders were not always hidden from the folder tree

fixed

Mail accounts in Folder Pane were not displayed in same order as in Account Settings

fixed

Keyboard accessibility improvements

fixed

Visual and theme improvements

Fixed in beta 5

What’s Fixed

fixed

Message "Back" and "Forward" buttons were not available in Unified Toolbar; Access keys in Go menu did not work

fixed

"Undo" and "Redo" commands did not work in message list

fixed

Message list select delay preference was not honored when doing fast keyboard navigation

fixed

Message list screen reader and keyboard accessibility fixes

fixed

Vertical message list was unaffected by UI density changes

fixed

"Zoom" feature did not work on message content

fixed

Folder Pane keyboard navigation improvements for accessing context menu

fixed

Message Filters dialog was not correctly sized for content and did not scroll

fixed

Printing a selected message failed

fixed

Contact pane was not resizable when editing a contact

fixed

Selecting text in address book did not work

fixed

Theme improvements

Changed and fixed in beta 6

What’s Changed

changed

Visual density is now consistent between folder pane and message list

What’s Fixed

fixed

Deleting a message in Unified View did not select the next message in the message list

fixed

Messages selected in "Unread Folders" view disappeared immediately after being selected due to being marked as read

fixed

"Mark a message as deleted" did not properly mark IMAP messages as deleted

fixed

"Location" column in message list was blank for saved search folders

Fixed in beta 7

What’s Fixed

fixed

Message List spacing in compact mode had increased in beta 6, now restored

fixed

Drag and Drop .eml file onto message list did not work

fixed

Drag and Drop message to re-order list columns did not work

fixed

Additional message list improvements

fixed

Buttons in message header (Reply, Forward, etc) were not keyboard accessible

Known Issues

unresolved

Screen reader accessibility is broken for message list and message bodies

unresolved

Message selection behaves inconsistently

unresolved

WebExtension APIs are currently broken

unresolved

Various other Thunderbird "Supernova" features

Learn What’s Next

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