Rated 1 out of 5 stars

I just installed the modified version again – and it works! TB 45.1.1
The xpi-file is in the zip-file, you have to unpack it and then install it inside Thunderbird....
Thanks to stanislav!

Rated 5 out of 5 stars

Thank you stanislav, that you publisched the correct code here. CANNOT understand, why the author is not able to update the addon with so small effort...