Rated 5 out of 5 stars

Thanks for this. One updates regularly in the hope of more secure, stable base code, but It's so frustrating when the new version is so wastefule of screen real estate! I can concentrate on my messages again, instead of the user interface elements!
Now, how do I stop the tab bar showing when there's only one tab, and get rid of those pointless stars against email addresses, whatever they're for!

This review is for a previous version of the add-on (1.1.7). 

http://groups.google.de/group/mozilla.support.thunderbird/browse_thread/thread/aa5c7ee4a85d1c64
http://getsatisfaction.com/mozilla_messaging/topics/make_thunderbird_3_look_act_like_thunderbird_2
No idea about the stars (they indicate whether an email address is already in the address book)