Bookmark Dupes is a Firefox extension designed to help users manage their bookmarks by identifying and removing duplicates, empty folders, and non-duplicate bookmarks. The interface is user-friendly, allowing users to easily select which bookmarks to display and manage. With options to remove or move selected bookmarks, it streamlines the organization of bookmarks effectively. The extension also features an expert mode for advanced users, enabling customizable rules for identifying duplicates based on specific criteria such as URL modifications and folder names.

The extension requires permissions to read and modify bookmarks, as well as to store custom rules in expert mode. Users are advised to back up their bookmarks before making any irreversible changes. While the extension is not available for Android, it supports multiple languages and provides a straightforward solution for users looking to declutter their bookmarks and enhance their browsing experience.