Private Bookmarks is a Firefox extension designed to enhance bookmark security by providing a password-protected folder for storing private bookmarks. Users can encrypt their bookmarks with a chosen password, ensuring that sensitive information is stored securely on their device. The extension automatically creates a 'Private Bookmarks' folder that can be accessed when unlocked, allowing users to add or remove items as needed. Once locked, the folder is removed from the bookmarks collection, maintaining privacy.

This extension operates primarily in private browsing mode, although users can adjust this setting. Auto-lock features enhance security by locking the folder when the last private window is closed or when the system is idle. Users can back up their bookmarks, export data, and utilize keyboard shortcuts for quick access. Overall, Private Bookmarks offers a straightforward solution for those wanting to manage sensitive bookmarks securely.