Hello, my usb headphones are working fine, but with FF I become a lot of problems. the experts, after analyzing/debugging crash report and bluescreen (!!!) dump files tolde me: the audio driver cm106.sys is causing bluescreen. out of curiosity the driver becomes "corrupted" only in FF (flash, silverlight, ....)! but it works fine with all other applications (VLC, powerdvd, flash in IE, mpc-hc with 4K videos too!). so, even if in the past 5 years my headphones worked well with FF too, due to recently FF updates and "amelioraments" this year I become bluescreen (at FF shutdown). The issue happens even if I connect the headphones *without* HUB usb! I want to purchase new USB headphones set with obviously newer drivers (max. 250$), but the big question is: how to know in advance if the new product will work fine in FF? what the audio driver (emulated DD 5.1 at the moment I have "C-Media like sound device" from Cmedia Taipei Taiwan) that FF may like? no idea what driver comes boundled with Logitech or Sennheiser or Pioneer.... even my driver is ok for all the programms, except for FF (since february 2014). thanks for suggestions.