very interesting
... I tried this on both browsers with remarkably different results
i.e. I am on cable - my bandwidth reports as 438 kbps in IE and 589 in NS
Most of my results (on both) were "No or unable to detect" ... I can only imagine that is a good thing (and am thanking my firewall??)
It did find the hundreds of fonts I have installed

and a few other things that makes me wonder ... what else?
cheers
MDM