Firefox multiple homepage

"Firefox has the ability to create multiple homepages, because of its tabbed browsing ability. If you choose to use this feature, each time you open up Firefox or hit the home button it will load two homepages. One of them in the foreground and one in the background. To do this just go Tools -> Options -> Location(s). In this field enter as many URLs as you wish separated by a space and a '|' in between. (EX: http://google.com | http://yahoo.com | so on...). This is a great feature if you have multiple homepages that you like to visit often. Also remember that choosing too many pages at once will cause the Firefox to take much longer to start up."