Download Mozilla Thunderbird 78.3.3

The Mozilla Foundation has released version 78.3.3 of Thunderbird. Thunderbird is an open source client for email and newsgroups, with features such as support for several mail and news accounts, a spam filter, spell checker, and a customizable appearance. In version 78 we find, among other things, a dark mode and other parts of the interface, such as the icons and the screen for composing an email, have been taken care of. Furthermore, the Lightning calendar add-on is now a standard part of the program, there is a new wizard for the first use and only MailExtensions add-ons are supported. The changelog for this release looks like this:

Fixes

• OpenPGP: Improved support for encryption with subkeys
• OpenPGP message status icons were not visible in message header pane
• OpenPGP Key Manager was missing from Tools menu on macOS
• Creating a new calendar event did not require an event title

Known Issues

• Message list is not focused at startup