Installer/behat/fd3testES/behat.yml

# behat.yml
default:
    extensions:
        Behat\MinkExtension\Extension:
            base_url: http://base.fd3.flowdat.com
            goutte: ~
            selenium2: 
                wd_host: "http://172.17.0.2:4444/wd/hub"
                capabilities: {"browserName": "firefox","version": ""}