The UI is actually intuitive to use despite another review that nearly discouraged me to try this add-on. You simply select the extension from the toolbar, click Find, then checkmark which duplicates you want to remove, and finally click the Delete Selected button at the top of the list. Easy-peasy!

Actually works even in nested folders, unlike the "popular" bookmark extension. The GUI could be improved though to something not so large and adjustable. Great job otherwise! 👍

PS Do you have one for Chrome?

Worked exactly as intended, Thank you!