Shortcut for launching URL with browser

Hi,

I am a brand new Listary Pro user and trying to figure out how to launch a URL specified with the browser.

For example:

gc www.espn.com (launch www.espn.com with google chrome)
ff www.espn.com (launch www.espn.com with firefox)

I am not sure exactly how to go about creating keyword combinations that do this. Help would be appreciated.

Create a custom command like this: