a feature i would like is for sound device selection. i have my pc connected to a usb headphone audio device and my surround amp through onboard soundcard. having to go into windows sound settings and change the default sound device through control panel is a slow task. thus changing all programs that do not handle sound device selection to operate on the windows default sound device and then needing to change it over and over. simply changing the sound device within firefox then starting the audio/video playback will initiate the new sound device.