Rated 2 out of 5 stars

I'm not sure it's working. Exactly what should I see in Windows Vista when it's "getting attention"?

This review is for a previous version of the add-on (1.2). 

You should see Thunderbird icon blink in the program bar exactly like your instant messenger program icon blinks when you get a new instant message. Obviously, Thunderbird must not to have focus in order to "get your attention"...