Review for Remove Duplicate Messages by zilladilla
Rated 3 out of 5 stars
This plugin seems to use the client-side index when searching IMAP folders. If I have an IMAP folder that I have not opened in Thunderbird, this add-on will not search it :-(
This review is for a previous version of the add-on (0.1.06).To create your own collections, you must have a Mozilla Add-ons account.