Download Mozilla Thunderbird 68.3.1

The Mozilla Foundation has released an update to version 68.3 of Thunderbird. Mozilla Thunderbird is an open source email and newsgroup client, with features such as support for several mail and news accounts, a spam filter, spell checker, and a customizable look and feel.

In version 68 we see a 64bit version for Windows for the first time and from this version it is now also possible to migrate a 32bit version to the 64bit version. Furthermore, the program can be managed via policies within corporate environments, filters can now be started periodically and multiple folders can be marked as ‘read’ at the same time. In version 68.3.1 the following improvements have been made:

Changed:

• In dark theme unread messages no longer shown in blue to distinguish from tagged messages
• Account setup is now using client side DNS MX lookup instead of relying on a server.

Fixed:

• Searching LDAP address book crashed in some circumstances
• Message navigation with backward and forward buttons did not work in some circumstances
• WebExtension toolbar icons were displayed too small
• Calendar: Tasks due today were not listed in bold
• Calendar: Last day of long-running events was not shown

Known Issues

• When upgrading from Thunderbird version 60 to version 68, add-ons are not automatically updated during the upgrade process. They will however be updated during the add-on update check. It is of course possible to reinstall combatible add-on via the Add-ons Manager or via addons.thunderbird.net.