Rated 3 out of 5 stars

Looks much better now! Couple of minor issues: It reports NaN for the server count, and it isn't actually deleting anything anymore.

This review is for a previous version of the add-on (0.80). 

There have been some changes in the Thunderbird API which broke compatibility with TB19 and older. I've addressed the changes in a new pre-release if you want to try:

http://asolkar.github.com/emptyem/pre.html

Thanks,Mahesh