I have 64-bit 102.9.0 Thunderbird on Win10 setup to 'play a sound' for 'incoming mails'.
It .. Does .. play the sound!! And .. Continues .. to Keep playing the sound every minute or so as long as it's unread.
I have 3 email accounts. So I'll hear a Series of Pings.
I don't want to deal with every single message immediately.
This 'feature' makes Thunderbird rather unusable as a mail client - as I can't get audio notifications .. unless I really Like Chinese Water Torture by .. Pings.
Can you .. Please .. just add an option for 'play a sound' .. Once .. for each new message? Just a checkbox so the 'Default' stays the same for anyone who prefers that?