Thunderbird 135.0 (32-bit)

What's new in this version:

New:
- Add-ons: Added support for specifying a cookieStoreId when creating a space

Changed:
- CardDAV address books and calendars now use the same OAuth2 code as mail
- Ignore unsupported subkeys/signatures when importing compliant OpenPGP keys
- Add-ons: browser.messages.listAttachments() now returns attachment headers
- Set show missed reminders preference to false by default

Fixed:
- Race condition in folder compaction could cause unexpected behavior
- Link at about:rights pointed to Firefox privacy policy instead of Thunderbird's
- On Windows, the Restart button in the About dialog failed to update Thunderbird
- Compacting an empty folder failed with write error
- Compacting of IMAP folder with corrupted local storage failed with write error
- POP3 'fetch headers only' and 'get selected messages' could delete messages
- Data corruption occurred when compacting IMAP Drafts folder after saving a message
- Users may not have been notified if messages arrived in multiple folders at once
- 'Search Online' checkbox in saved search properties was incorrectly disabled
- Dragging threaded emails to another folder left a summary in the message panel
- POP3 status message showed incorrect download count when messages were deleted
- Thunderbird could show incorrect 'From' and 'To' fields for mailing list emails
- mail.compose.other.header wrongly added fields to message preview pane headers
- Space bar did not always advance to the next unread message
- Folder creation or renaming failed due to incorrect preference settings
- Message list scrolled to the wrong place on start-up
- After restart, all restored tabs with opened PDFs showed the same attachment
- Forwarding/editing S/MIME drafts/templates unusable due to regression
- Shutdown could hang due to unterminated search execution
- Sort order in 'Search Messages' panel reset after search or on first launch
- Reply window added an unnecessary third blank line at the top
- Thunderbird spell check box did not allow ENTER to accept suggested changes
- Thunderbird did not warn when replying to a 'noreply' address containing a '+'
- Context menu was unable to move email address to a different field
- 'Please fill out this field' in account setup always appeared in English
- Add-ons: Links in content pages with a target attribute loaded a blank page
- Double clicking a new contact icon added the contact to the address book twice
- Long email subject lines could overlap window control buttons on macOS
- POP3 'fetch headers only' and 'get selected messages' could skip some messages
- Thunderbird logged network errors in console when used in offline mode
- 'Prefer client-side email scheduling' needed to be selected twice
- Calendar print misaligned days (Mon-Sun) with their correct dates
- All-day event dates were displayed with times when they should not have times
- Duplicate invitations were sent if CALDAV calendar email case did not match
- Thunderbird calendar failed to show attendee as busy when added to an event
- Exceptions during CalDAV item processing would halt subsequent item handling
- Visual and UX improvements
- Security fixes