Okay so I'm trying to get Hamachi to work, downloaded it and everything and it's saying that cookies aren't enabled. I've done everything I know to try and get them enabled (three different methods) and even tried reinstalling it after enabling them and it's still not working. I'm not sure what else it could be.
I had the same problem. I changed all kinds of settings on firefox, things i didnt even knew i couldt change. The problem is, Hamachi doesnt use firefox. Hamachi use Internet Explorer. Therefore you should open explorer. Go to settings-Internet options - Privacy and accept all cookies. Your problem should be solved, at least it worked for me.