Rated 5 out of 5 stars

Excellent Add-on!!! I had over 6 thousand emails in my inbox, lots of them dupes... I right clicked on inbox, then Remove Duplicates... a single screen wizard let me select which copy to keep for each dupe, globally, not making the selection one by one! (first copy, last copy, etc.)... And that's it! compared my cleaned up inbox with another machine running TB and both had just 3825 emails under inbox :)

This review is for a previous version of the add-on (0.3.3).