problem is: Firefox loads then redirects me to fp.pc-on-internet.com or occasionally other sites. I have scanned with various programs, no indication of virus or other problems. I have blocked scrips and used adblock to stop problems. If I block the site firefox will not load. says it has been partially blocked. Have deleted firefox, done deep scan with norton and reloaded firefox, still same. Getting extremely annoying. Any assistance would be appreciated.