Works pretty good for me

does exactly what expected, nice selection possibilities, works in seconds.
cleaned up mess after duplicate sync of several devices with 2000+ bookmarks and 150+ folders in a couple of minutes.
thanks.

Fantastic! Just what I needed. Reduced my 13,000+ bookmarks to about 3500 and afterward, I was able to delete over 700 empty folders.
I loved that I could choose to retain the most current of each group of duplicates. Thank you. <3
...mathew

Firefox should have deduplication in bookmark management by default

amazing

simply amazing addon. A few clicks and my toolbar is dupe free and empty folder free as well!

worked perfect to delete 4631 duplicates introduced somehow by some sync problem

Found all duplicates and after selecting which ones to delete, deleted them all without any issues

Perfect. Cleaned my dupes in just a few seconds