Puntuado con 1 de 5 estrellas

Doesn't work on Thunderbird 12.0.1, windows 7 64 bits.

I configured the plugin. When I click "create Jira Issue", nothing happen: no popup, no error message.

Esta valoración es de una versión anterior del complemento (0.11). 

@MatB: I cannot confirm this. I am running Windows 7 (64Bit) on my laptop and have just recently installed TB 12.0.1 and it works out of the box.

Did you configure the user/login/url correctly?
Did you restart TB after the installation of the plugin?

If you leave those fields empty and click on the "Create Jira Issue" menu entry the configuration dialog should pop up immediately.