Hi there! It’s great that you’re looking to clean up your bookmarks—keeping them organized makes life so much easier! While A&M Deadlink was a solid option back in the day, it hasn’t been updated for quite a while. Nowadays, there are some alternative tools and methods you can try. For removing duplicates and dead bookmarks in Firefox, you might want to check out an add-on like Bookmark Deduplicator or Bookmark Organizer. These add-ons can scan your bookmarks for duplicates and even help you identify broken links. You can find them directly in the Firefox Add-ons store. Another option is to export your bookmarks as an HTML file and use an online tool or a third-party program to clean them up. While it’s a bit more manual, it gives you the flexibility to remove entries without risking unintended deletions. I hope this helps! Let me know how it works out or if you need more tips.