Thunderbird Desktop
Version 123.0beta | Released January 25, 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.
These notes apply to Thunderbird version 123 beta 5 released February 12, 2024.
System Requirements: Details
- Windows: Windows 10 or later
- Mac: macOS 10.15 or later
- Linux: GTK+ 3.14 or higher
What’s New
new
Added support for OS-specific accent colors
new
Manual account configuration now implements form validation
new
Added option to show packet dump when OpenPGP fails to decrypt
new
UI density now affects multi-message view
What’s Changed
changed
Added Show more/less buttons to notifications in Account Hub
changed
Folder alerts now display full path of affected folder
changed
IMAP "Too Many Connections" alerts now display IMAP server name
changed
Disabled support for LibrePGP v5 AEAD/OCB decryption
What’s Fixed
fixed
OpenPGP Key Manager filtering did not work
fixed
OpenPGP sometimes attempted to decrypt message with incorrect key
fixed
Autoconfig failed on servers that did not support OAuth2
fixed
Network settings window was blank
fixed
Selected row in folder pane did not always remain visible when using keyboard navigation
fixed
Hovering over folder does not always expand subfolders
fixed
Yahoo! and AOL account message filters only filtered most recent message match
fixed
Quick Filter settings did not persist when Quick Filter bar was turned off
fixed
Mail tab-specific Unified Toolbar buttons received focus incorrectly
fixed
Clicking "Sent unsent messages" in Outbox context menu while in offline mode did not prompt user to go online
fixed
"Confirm Deletion" prompt was incorrectly shown when deleting messages with Grouped By header also selected
fixed
Thread collapsing did not behave correctly when copying thread messages in multi-folder view
fixed
Opened ignored messages in a message thread/subthread were not marked as read in IMAP folders
fixed
Opening different attachments with the same name in different messages could cause attachment files to become conflated
fixed
Address Book scrolling did not work when using keyboard navigation
fixed
When creating new calendar, password prompt showed "rememberPassword" instead of "Use Password Manager to remember this password."
fixed
Overflowed attachment list could not be scrolled
fixed
Thread styling appeared on Grouped by Sort messages
fixed
Various visual and UX improvements
Fixed in beta 2
What’s Fixed
fixed
Remote content warning was shown multiple times for the same message
Fixed in beta 3
What’s Fixed
fixed
Thunderbird slowed down significantly when opening email files (.eml)
fixed
Passwords disappeared from password manager list after applying and clearing filters
fixed
Cookies in cookie manager list disappeared after applying and then clearing filters
Fixed in beta 4
What’s Fixed
fixed
A selected attachment's filename in the mail reader was not visible
Fixed in beta 5
What’s Fixed
fixed
S/MIME encryption failed to encrypt if unsupported certificate type was encountered
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