Mozilla releases Thunderbird 78.6.1, a security update to the app that also includes a number of improvements and general fixes. It is now available for download for Windows, mac OS and Linux.
Thunderbird is my preferred email client of choice. I use this app on every PC and on every operating system I use. It is stable, contains all the features you need, supports add-ons and also comes with a useful RSS reader. I am using Thunderbird for many years and never felt the need to look for an alternative.
Thunderbird 78 doesn't support classic XUL add-ons any longer, but includes some of their features out-of-the-box. For example, on Windows you can minimize the app to the system tray.
The following changes have been made to the app.
What's in Thunderbird 78.6.1
- MailExtensions: browserAction, composeAction, and messageDisplayAction toolbar buttons now support label and default_label properties
- Running a quicksearch that returned no results did not offer to re-run as a global searchMessage search toolbar fixes
- Very long subject lines distorted the message compose and display windows, making them unusable
- Compose window: Recipient addresses that had not yet been autocompleted were lost when clicking Send button
- Compose window: New message is no longer marked as "changed" just from tabbing out of the recipient field without editing anything
- Account autodiscover fixes when using MS Exchange servers
- LDAP address book stability fix
- Messages with invalid vcard attachments were not marked as read when viewed in the preview window
- Chat: Could not add TLS certificate exceptions for XMPP connections
- Calendar: System timezone was not always properly detected
- Calendar: Descriptions were sometimes blank when editing a single occurrence of a repeating event
- Various printing bugfixes
- Visual consistency and theme improvements
- Various security fixes
The release notes are available here.