OS Resolution spoofing

[PiXEL]

Hello,
I'm searching for a filter to spoof the resolution of my OS.

I searched, but I only found a topic, where was written that it is possible to do this, by changing the values of cookies. In the forum they used LIVE http headers addon for firefox, but there was nothing more explained.

I tried it to find the correct part of the request in LIVE http headers addon, but I didn't found the solution.

Probably anyone know such a filter or probably anyone could give me some help.

Would be really nice if I could spoof my resolution with proxomitron.

Thanks.

PiXEL