Oceniono na 3 z 5 możliwych gwiazdek

Not working with TB 60.

check this similar extension:
https://addons.thunderbird.net/en-US/thunderbird/addon/minimizetotray-reanimated/

Oceniono na 5 z 5 możliwych gwiazdek

Great extension,

but disabled in Thunderbird 60.0 :(