De Mozilla Foundation heeft versie 151.0 van Thunderbird uitgebracht. Thunderbird is een opensourceclient voor e-mail en nieuwsgroepen met ondersteuning voor verschillende mail- en newsaccounts. Verder zijn er een spamfilter, spellingscontrole, kalender en adresboek, en heeft het een aanpasbaar uiterlijk. Thunderbird is beschikbaar in twee verschillende versies, die beide als stabiel worden aangeduid. De eerste wordt vaker voorzien van nieuwe functionaliteit en wordt als Release-versie aangeboden; de andere, de Extra Support Release-versie, wordt alleen van bugfixes en stabiliteitsverbeteringen voorzien. In deze uitgave zijn de volgende veranderingen en verbeteringen aangebracht:
What’s NewWhat’s Changed
- Enable Thundermail OAuth sign-in with account auto-configuration
- Enable users to override OAuth provider details for EWS accounts
- Tasks can be sorted by created or modified date
What’s Fixed
- Reinstated default application check when Thunderbird starts
- OpenPGP public key no longer attached by default in signed-only messages
- Thunderbird could crash when processing message headers
- Thunderbird could crash on startup
- Calendar view tabs were not properly keyboard accessible
- Thunderbird could crash when processing new incoming messages
- On macOS, dragging attachments out of Thunderbird created multiple copies
- Cancelling a newsgroup posting was not possible
- Some IMAP emails showed current time instead of correct received date
- Search result count was missing when using 'Find in Message' or Ctrl+F
- Search results showed older irrelevant emails before newer exact matches
- Reply with selected text lost formatting for HTML messages containing
- Multipart/related attachments were not preserved when editing or forwarding
- Forwarded malformed MIME email had empty body and extra attachment
- OWL add-on description was not visible in Account Hub for non-en-US locales
- Account Hub prompted for password after OAuth login, causing Outlook setup failure
- Auto-discovered Account Hub values were not preserved for manual editing
- Account Hub links for encryption and signature opened the wrong account
- Virtual folders did not update correctly for filtered POP3 messages
- Thunderbird could crash in spam filtering
- Using thunderbird -compose with double quotes made last email address invalid
- With auto-mark-read disabled, large mail still marked as read during load delay
- It was not possible to create date-only all-day tasks
- Task context menu (right-click) had several disabled menu items
- 'Current Tasks' view showed past and finished tasks instead of only unfinished
- Visual and UX improvements
- Security fixes
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