Saved me from doing this manually Rated 5 out of 5 stars

Works wonderfully as promised (and fast!) on Thunderbird 2.0.0.24
I like the way you can preview emails before deleting them.

First time using this, so I checked every email selected to see if they were duplicates.
Not a single false positive.

Thank you!

This review is for a previous version of the add-on (0.3.5).