Download page Define Multiple Start Pages for Your Browser.
Define Multiple Start Pages for Your Browser
In some cases, a fixed set of start pages displayed in separate tabs may prove useful. For instance, if the browser is working in kiosk mode, reusing a set of tabs from an earlier session is not an option.
Here is how to define multiple start pages to be opened at browser startup:
Open the setup and go to Browser > Browser Global.
Set When Firefox starts to Show my home page.
Set Homepage to the URLs that the browser should open at startup. Use "|" as a separator.