[German]The developers of the e-mail client Thunderbird released Thunderbird 78.4.3 on November 11, 2020. This is a security update for the 78 main version of the e-mail client, which fixes bugs.
- The user interface becomes inconsistent when switching from a dark theme to the default theme and back
- The subject of the e-mail disappears when you move the mouse over it and use the classic Windows 7 theme
As a known issue the developers state that the message list is not focused at startup.
The system requirements for the different operating system versions (see also where further details can be found):
- Windows: Windows 7, Windows Server 2008 R2 or higher
- Mac: Mac OS X 10.9 or higher
- Linux: GTK+ 3.4 or higher
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