Selenium+Autotest: how to run browser in background?

Hey guys

After hours of hard work I finally managed to set up my development
environment to run cucumber scenarios using autotest and selenium.

What’s a bit bugging is the fact that Firefox always jumps to the
foreground when Autotest does its job. How can I keep Firefox in the
background so that I can continue with my work without being


Well, didn’t find a solution, but using the :chrome driver lets Chrome
be activated in the background…