The new version Thunderbird 143 It is now available for Windows, macOS, and Linux. This release is aimed at addressing issues found in previous releases, with a focus on overall stability, interface behavior, and some compatibility issues.
The responsible team has published a package of changes that solves problems in the start, the sending and managing emails, account settings, search, and various usability details. The update can be applied from the client itself or downloaded from the official website.
What's changing in Thunderbird 143
More than new features, this release focuses on fix regressions and improve reliabilityIt also includes minor visual and user experience tweaks, as well as fine-tuning menus and shortcuts to make everything work more seamlessly.
Stability: goodbye to crashes
Unexpected shutdowns and crashes affecting different tasks have been eliminated, with the aim of minimize interruptions during daily use.
- Fixed crashes when launching the app and importing email.
- Fixed an interface crash when adding new accounts.
- On Windows, tapping the new message notification now correctly returns the window to the foreground.
- General stability and background performance improvements.
Mail, IMAP, and Drafts
The usual actions of sending, saving and managing messages have been strengthened to offer more efficient behavior. predictable and consistent.
- Restored the ability to send via smtp-relay.gmail.com.
- Fixed deleting or separating attachments failing on some IMAP servers.
- Fixed an issue where switching to a new drafts folder and back prevented the view from being restored correctly.
- Prevents a newly saved draft from preserving a previous, outdated version.
- Fixed the new message counter that appeared before receiving messages.
Improved search, contacts, and menus in Thunderbird 143
Interaction, access and navigation elements have also been polished to make the interface more responsive. more fluid and coherent.
- Arrow key selection in global search no longer skips intermediate results.
- Dragging an unselected contact now inserts the correct address, without errors or omissions.
- The option to create an address book from the File > New menu has been added.
- Fixed duplicate accelerator keys in the Menu Bar > View path.
- After upgrading from 128 ESR to 140 ESR, the menu bar is now displayed correctly again.
- The language field in Settings no longer appears empty after rebooting in troubleshooting mode.
Security, certificates and platforms
In the protection section, Thunderbird 143 closes various vulnerabilities and fixes the display of pages with invalid certificates, which could be displayed as blank.
- The case of web pages with problematic certificates that were left blank has been resolved.
- A corresponding warning is now logged when the OpenPGP alias rules file (mail.openpgp.alias_rules_file) is missing.
- On macOS, the Cmd+Shift+F shortcut for invoking message search is back in working order.
- Interface tweaks and improvements that refine the overall experience.
Available via automatic update or direct download
You can update from the client itself or download the cross-platform installer from the official website. For Linux, there is a binary package that runs without installation in most distributions. Along with this standard version, maintenance releases have also been released for the ESR branch.
The 143rd edition arrives as a stability-focused patch that fixes annoying bugs and strengthens security; a recommended update for everyone who uses Thunderbird daily, especially if you use IMAP, frequent searches or integrations with Google services, or if you are interested in learning more about alternative client to Thunderbird.