Puntuado con 3 de 5 estrellas

THANK YOU, Brian!! I had disabled menu bar view, so your info solved the problem.

Updated rating: Add-on works fine. Deducting two stars for lack of support and documentation, and for the frustration factor.

Esta valoración es de una versión anterior del complemento (2.0.2). 

Puntuado con 1 de 5 estrellas

This add-on is listed with my installed add-ons, but there is no evidence of it in Thunderbird and no way to use it. There is supposed to be an option for it under Tools, but there is not.
Tried contacting the developer but have received no response.

Esta valoración es de una versión anterior del complemento (2.0.2).