Rated 2 out of 5 stars

It seems to be broke on Thunderbird 68.2.2. I can configure the todo and done.txt paths, but it doesn't read or write any tasks in these files.
I'm really looking forward to see this add-on working. Great initiative, congratulations! Thank you.

This review is for a previous version of the add-on (2.0.0). 

It was a known bug, this should be fixed in version 2.0.1. This should be made available in the next couple of days.