Beta Notes

Thunderbird Desktop

Version 113.0beta | Released April 11, 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 113 beta 6 released May 3, 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"

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

Added activity indicator to new Unified Toolbar

new

Added "Show tasks in calendar" option to Calendar Control menu

What’s Changed

changed

S/MIME messages that use SHA1-based signatures will now be rejected

What’s Fixed

fixed

Thunderbird on Wayland froze during every other startup if a primary password was set

fixed

Several buttons in Account Central did not work

fixed

Global search bar remained visible and partially functional when search was disabled

fixed

Ignoring and watching threads and subthreads did not behave as expected

fixed

New Unified folders were not marked as virtual folders

fixed

Keyboard scrolling did not work for message body when opening message in a new tab

fixed

Message context menu could not be opened using keyboard

fixed

Custom folder colors did not apply until after restarting Thunderbird

fixed

Auto-enabling and auto-disabling of E2E encryption did not behave as expected under certain circumstances

fixed

Thunderbird sometimes froze when switching quickly between tabs with S/MIME messages

fixed

In the compose window, switching identities in the "From:" field using a mouse did not work; full identities were not displayed

fixed

Progress dialog did not appear for manual retry of saving IMAP messages to Sent, Draft, or Template folders

fixed

Chat conversation names were not shown

fixed

After restarting Thunderbird, all-day to-do tasks changed to tasks set at midnight of the same day

fixed

Window decorations did not appear under certain circumstances for dialogs on Linux

New and fixed in beta 2

What’s New

new

"Get messages" and "New messages" buttons can now be individually hidden from the Folder Pane

What’s Fixed

fixed

Drop-down buttons in message header could not be activated using Enter or Space

fixed

Drop-down button of "Reply All" button was not available in message header

fixed

Creating too many filters in the Filter Editor caused the list view to overflow without scrolling, making overflowed filters inaccessible

fixed

Archive button did not work on collapsed threads

fixed

News reader did not always issue GROUP command after authentication with remote server, preventing Thundebird from displaying or refreshing news from the server

fixed

Adding too many terms to an Advanced Address Book Search caused the list view to overflow without scrolling, making overflowed terms inaccessible

fixed

Various visual and UX fixes and improvements

Fixed in beta 3

What’s Fixed

fixed

Moving or renaming a mail folder caused sub-folders to disappear

fixed

Incorrect message was used for reply/forward if a new message arrived while reading a message

fixed

Folder Tree performance improvements

fixed

Previously hidden folders were visible in Unified Folders mode

fixed

RSS and News accounts were not included in Unified Folders mode

fixed

Columns in some list displays could not be resized

Fixed in beta 4

What’s Fixed

fixed

Switching to Unified Folder Inbox with larger profiles caused high memory usage and considerable delay

fixed

Mail tabs did not immediately update to reflect new contact display name preferences

fixed

OpenPGP status in message reader did not update when switching to new messages

fixed

Thunderbird did not check for recipient S/MIME certificates in some cases while encryption was enabled

fixed

Attachment icon incorrectly displayed for multipart emails

fixed

"Insert Image" dialog box did not resize to accomodate preview image, hiding dialog buttons

fixed

Screen readers did not consistently communicate the selected message when navigating message list with "Page Up", "Page Down", "Home", or "End"

fixed

Events and Tasks views in Today Pane could not be resized when using split mode

Fixed in beta 5

What’s Fixed

fixed

Encrypted Subjects on OpenPGP messages were not displayed until the message was displayed

fixed

"Compact Folders" menu item was not enabled when the account itself was selected in the folder pane

fixed

Context menu items (copy/cut/paste) were missing from Quick Filter bar

fixed

"Copy to Folder" menu item was not enabled when viewing an opened .eml file in a standalone window

fixed

Subfolders did not expand when dragging messages to folder pane

fixed

A "Learn More" link was missing from the "Do not track" option in "Privacy & Security" Settings

fixed

Window control buttons (minimize, maximize/restore, close) were displayed out of order on Linux configured to use reversed placement

fixed

Folder pane header buttons were spaced too far apart with a wide folder pane

Fixed in beta 6

What’s Fixed

fixed

Unified Toolbar "Compact" button did not work

fixed

Quick Filter bar visibility and performance improvements

fixed

Unified Folders view fixes: Missing folders restored, searched folders did not refresh when subfolders were added

fixed

Some new/unread messages were erroneously marked as read

fixed

Send Progress dialog only displayed as a title bar

fixed

Creating OpenPGP keys with no expiration was not possible

fixed

About dialog layout fixes; restored display of distribution.ini information

fixed

Extra linebreaks in Google Calendar event descriptions removed

Learn What’s Next

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