Opening Browser in a Wrapper

Okay,
So I've been googling for a couple of hours trying to come up with a way to open a browser in a java "wrapper" or something of that nature so that it can have its "own" mouse / keyboard input.

I want to use the Robot class to control the mouse / keyboard within a browser window, but I do not want this to affect input by the rest of the computer. I want my robot to run in the background without needing control of my whole computer. Anyone know how to do this?

I know I could also use the Http classes and keep track of cookies and send request / post variables accordingly (without ever using the mouse), but the first way seems much easier.

Thanks for any help.