How to Password your Firefox bookmarks

We know the importance of a Bookmark that you add into your browser, especially you as a user-ons in order to be more efficient and easier so you do not have to bother looking for the links. That is the importance of bookmarks, but if you add a boobkmark very private nature, for example, you add a bookmark certain sites do not want others to know.Now, create a password for your Firefox bookmarks,