Opening a browser

Hi, could someone please tell me how you open a browser other than Internet Explorer with a webpage? I know to open one with IE you use:

ProcID = Shell("C:\Program Files\Internet Explorer\IEXPLORE.EXE " & strPathOfWebpage, AppWinStyle.MaximizedFocus)

But how do you do the same in a browser such as Firefox or Mozilla? When I try using the same way as IE nothing happens.

VB Code:

process.start("mozilla","google.com")

where "mozilla" is the browser and "google.com" is the argument. hope this helps, if not, sorry...