Rated 1 out of 5 stars

Από τον/την Eyal Rozenberg στις Μάρτιος 28, 2008 · μόνιμος σύνδεσμος

This extension has been effectively abandoned by its author for almost 2 years, without significant updates. It is also not free software, so the code cannot be used elsewhere.

For this reason I have fully rewritten a dupe removal extension of my own, which is actually free software:

Remove Duplicate Messages (alternate)
https://addons.mozilla.org/en-US/thunderbird/addon/4654

It has seen more active development, has a richer feature set (which proerly includes the features of this extension) and for which issues can be opened on Mozdev's bugzilla and addressed within a reasonable amount of time.