Hello. Idk how this happened, but my bookmarks have quadrupled. Idk why I bookmark so much, but I had about 40 folders for bookmarks, until I now found I have 160. There's 4 of every folder. How do I clean this up? I know Edge has a "delete duplicate bookmarks" button. But in Firefox, I can only find add-on extensions that claim they can clean out duplicate bookmarks, but having tried 3, I've found none to work. Any suggestions?