If I set a custom notification sound from an mp3 in the settings, the sound doesn't play, not even with the test button.
If I select systemsound it works when receiving an e-mail and with the test button.
I'm using Thunderbird Version 91.1.2 (64-Bit) and Windows 10 and the mp3 works flawlessly with every other program.
If I set a custom notification sound from an mp3 in the settings, the sound doesn't play, not even with the test button. If I select systemsound it works when receiving an e-mail and with the test button. I'm using Thunderbird Version 91.1.2 (64-Bit) and Windows 10 and the mp3 works flawlessly with every other program.