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Thunderbird 153.0.3 With Stability Fixes for the New Supernova UI
This update focuses on encryption reliability and small UI annoyances rather than new features.
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Mozilla has pushed Thunderbird 153.0.3 to the Release channel, a maintenance update that follows up on last month's "Meadow" release. It focuses on encryption reliability and small UI annoyances rather than new features.
What's New
- OpenPGP/S-MIME fixes Resolves a bug where emails from Apple Mail failed to decrypt due to a hidden recipient key ID.
- Faster key handling Opening messages containing OpenPGP keys no longer blocks the UI when the keyring is large.
- Clearer S/MIME errors An invalid S/MIME encryption certificate no longer produces a misleading send error.
- Quick filter fix Pressing Esc no longer clears the quick filter pin after switching folders.
- Composer fix Dragging an email address between open compositions now works correctly.
- Chat cleanup The Odnoklassniki chat setup has been removed; affected users are redirected to XMPP configuration instead.
These build on the broader Thunderbird 153 "Meadow" release, which added smarter account/OAuth handling and wider EWS and IMAP fixes.
Download
See the software's page on UpdateStar for version history and update tracking.
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