Rated 4 out of 5 stars

per Reinaldo Augstroze Rutter el gen. 1, 2015 · enllaç permanent

Very good indeed. Thank you Marian! I agree with others users about instructions on how to use it. I found out just by applying logic. Once you install it you have to restart Thunderbird. Then go to Adress Book / Tools/ Find and manage duplicates. Hope it helps.