Upon activation, a new dashicon in the shape of a star will appear next to the title of every post, page, and custom post type. The icon is what’s used to mark items as favorites. Dashicons became a part of WordPress beginning with 3.8. This explains why WordPress 3.8 or above is required to run Admin Bookmarks.
When an item is marked as a favorite, a direct link to the item is added to the left hand menu. This helps to quickly find the post instead of having to search for it. By using AJAX, the entire page doesn’t have to reload which is an added convenience.
Direct links to posts only show up in the left hand menu on the administration page for that item. For example, you won’t see links to favorites on the Appearance page. However, you’ll see them on the All Posts page or the Posts flyout menu. There’s also a dashboard widget with Edit and View links to quickly manage favorites.
Admin Bookmarks is an example of a great WordPress plugin. It’s simple to install, easy to use, and focuses on solving one problem. If you find yourself constantly having to find the same post or page to edit, give Admin Bookmarks a try and let me know what you think.