Affiliate Marketing Secrets

I have been trying to get rid of this virus. Basically i use firefox. I scanned several times with Malware bytes, hitman pro and a few others. I blocked the websites it takes me to (with the exceptions for cookies in options) and it still takes me too websites like
http://click.get-answers-fast.com/ads-clicktrack/click/jump1.do?sid=mjFbvIPZKA88ocme1%2FfoErrw21F5lPYEJ6oRTKdsIGsj5YN5IdCUmw%3D%3D&affiliate=46573&subid=178303-72-28356&rc=0&terms=civilization%205%20how%20to%20cross%20ocean and idk what to do i deleted my cookies and i just don’t want viruses because this thing is annoying me because about every 3rd link in google i click redirects me and also i have adblock plus. I have firefox 13 (i think that is the one where it has the stuff in new tabs) and i have windows 7. I think thats all the info you would need. i just want this virus to die in a fire. thanks.