Rated 3 out of 5 stars

I notice the current version is dated November 15, 2013 and there is a comment by Lobito dated January 20, 2014 that reports some typos in the add-on that prevent it working properly.

Before I try the add-on I want to know, have the corrections suggested on January 20, 2014 been applied?

Applying the updates will probably cause the use of this add-on to take of and increase greatly because an add-on like this is really needed (assuming nobody fixes the underlying bug in Thunderbird).