Multiple Homepages in Firefox

When you click the ‘Home’ button or load your web browser for the first time, you are taken to the home page which you have set in the options.

Is there a way to open multiple homepages at once?

Go to the Firefox’s Tools menu > Options > General. Enter the addresses of sites separated by a pipe |
e.g.
http://gmail.com | http://google.com | http://yahoo.com

Or, you can open up all the sites in tabs and hit the “Use Current Pages” button.
This will open all these pages at start up or when you click the ‘Home’ button.
[via Lifehacker]