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Join UsVersion 93.0beta, first offered to channel users on September 9, 2021
Added config option to more aggressively warn sender about having many public recipients to an email (mail.compose.warn_public_recipients.aggressive
)
Removing events from a calendar now prompts for confirmation
Replace "About Junk Mail" dialog with a link to the support page
Support for importing and exporting calendars from Outlook CSV format was removed
Saving a single message as .eml now uses a unique filename
Thunderbird can now be used without setting up a mail account
Importing a profile from a ZIP file greater than 2GB failed
Message download progress was calculated incorrectly
IMAP startup performance improved for accounts with a multitude of folders
OpenPGP public key was attached multiple times when forwading a message
Windows tray icon disappeared if Thunderbird was started by a shortcut with "Run" set to "Minimized"
Delivery Status Notifications were only shown for the first recipient
Composing a message from a template with attachments failed due to a temporary file being removed
Multiple bulk mail notification warnings were displayed
Windows tray message count badge displayed the "unread" count instead of the "new" message count
Some downstream Thunderbird builds were incorrectly checking addons for a signature, causing all addons to be disabled
Attached VCards displayed as plain text when an email was HTML formatted
Mailing list names with non-ASCII characters incorrectly displayed with an error
LDAP directories were not searched for matches when adding recipients to an email
Clicking "Connect to an LDAP address book" in account setup opened CardDAV setup dialog
IRC server connections did not automatically retry after a timeout
Read-only CalDAV calendars and CardDAV address books were not detected
Multipart messages containing a calendar invite did not display any of the human-readable alternatives
Various keyboard accessibility fixes
Various theme and UX fixes
Buttons on compose window dialogs did not have a visual indication of focus
Dropdown fields in message compose window were unreadable on Windows 7 with a dark theme
Attachment sizes were no longer included on printed emails
Addressbooks set up with autoconfig showed no search results
LDAP search queries containing non-ASCII characters produced no results
A message sent with multiple attachments sometimes only sent one
Recipient pill context menus on macOS did not work
Decrypting binary attachments when using an external GnuPG configuration failed
Message Security popup did not display all recipients due a missing scrollbar
Thunderbird will now warn if an S/MIME encrypted message includes BCC recipients
Thunderbird sometimes attached the wrong messages when forwarding multiple messages by attachment
Thunderbird did not re-prompt for an SMTP username if one was not provided
Messages with BCC recipients that were held in the Outbox did not retain the BCC header when moved to the Sent folder
Some calendar days were displayed incorrectly or duplicated (eg. two "29th" days of a particular month)
Thunderbird displayed reminders for events that were cancelled or declined
MS Teams meeting event descriptions were unreadable when stored on Google Calendar
New Feed Account dialog did not honor dark mode
Dragging and dropping multiple email attachments between windows did not always copy all attachments
Recipeint address pills in an error state could incorrectly merge with mailing list pills when expanding the list
Account name fields in the account manager were not big enough for long names
LDAP searches using an extensibleMatch filter returned no results
Public ICS calendars served with an incorrect Content-Type could not be added
Setting a CalDAV calendar to manually update had no effect
CalDAV calendars set to read-only became writable after restarting Thunderbird
Phantom event was shown at the end of each day in Calendar week view