First, are you able to get to ANY sites with Firefox, and if not, did you allow it through your firewall?
Second, while it's not impossible (just exceedingly rare to the point of only one rather old proof of concept extension) to have Firefox spyware, it is generally impossible to have Firefox spyware that will compromise your entire system like with IE.
Third, I can't seem to find much info on that domain name, but the risk of spyware with Firefox is pretty minimal... At least for now. With all this media convergence garbage going on lately, it's probably only a matter of time before any browser that is able to use Pointless-New-Web-Technology-X is able to be exploited equally.
I have both IE and firefox installed on my pc,as i said above i m not able to browse sites like yahoo in firefox(latest edition)..plz help, and i want to know whether the site www.ffsearch.net installes any spy wares in pc? bocoz firefox is using the above search site when i type in the address bar of firefox.plz help