Bug in thunderbird
Close, maximize and minimize buttons are hidden but working if you click were supposed to be. It seems a problem with paining order. The buttons seems to be below the black bar. If I click on Tools, preferences. The program shows a white screen and crashes. Before the program crashes some times the buttons appear. See images.
I've sent the bug report when asked for.
Alla svar (2)
Sorry forgot to inform: OS Windows 7 Professional 64 Service pack 1 Thunderbird : 91.3.2 (32-bit) I'm going to update to 91.4.0
On version 91.4.0 buttons are also hidden, but it works when click on Tools/Preferences.