Bookmark Manager Plus is described as 'This extension focuses on searching. If you have many bookmarks and folders, you can easily access by searching. Of course, beside searching, It's full of useful functions' and is a Bookmark Manager in the Web Browsers category. There are five alternatives to Bookmark Manager Plus for a variety of platforms, including Online / Web-based, Android, Mac, Windows and Linux. The best alternative is Advanced Bookmark Search, which is both free and Open Source. Other great apps like Bookmark Manager Plus are Passfindr (Freemium), Idenati (Freemium), Vhumo (Free) and F-Curator (Free, Open Source).
This extension indexes all your bookmark items once and updates its indexing database when a change occurs in your bookmark tree like a new bookmark being added, removed or modified. This database can then be used to find matching terms using the extension's popup window.
Passfindr is a web based premium Personal knowledge base, Password manager and Bookmark manager application to securely store passwords and other sensitive information in a virtual vault locked with individual master passwords.
Vhumo is a Cloud Bookmark Manager to organize your favorite websites into personal categories and access from all devices, wherever you are. You can share with your contacts and import from external platform.