Bookmarks are something which you access frequently and there might be a set of bookmarks which you want to access in a cyclic manner. Morning Bookmarks is a nice Firefox add-on which allows you to add your favorites sites to bookmarks and then easily cycle through them with a click of a button. It is meant to be used for sites which you visit every day, for instance newspapers sites, blogs or forums.
You can add new bookmark to Morning Bookmarks using the bookmark menu. The option window allows you to add any number of bookmarks and then arrange then accordingly.
When you want to cycle through the bookmarks, click on the Morning Bookmarks button near the address bar.