I had recently published Bookmarks Organizer Chrome Extension to the Chrome Web Store. This extension listens to newly created or moved bookmarks and auto reorders bookmarks, keeping it sorted in ascending order by title. Currently the only way I can reorder is to manually go to each folder from the bookmark manager and click reorder. There is a reorder button which will reorder the whole bookmark. However there are API restrictions which allows only a limited number of moves per minute and per hour.
The source code is available at the BookmarksOrganizer github repository.
