Bad certificate management Rated 1 out of 5 stars

Does not work with internal certificate autosigned.
There is no button to accept them, and the plugin keep notifing that the certificate is wrong, you have to kill thunderbird not very friendly. Waiting for the next version hoping this problem lasting will be solved

This review is for a previous version of the add-on (0.14). 

This is not a plugin problem, but a problem of Thunderbird. Please see the FAQ on how to configure Thunderbird to accept self-signed certificated.