Why can't I register my name and password?

I downloaded Foxfire today. Now I am having a problem trying to register my name and password for my account. When I downloaded Foxfire it had not asked me for any information. So what is the problem and how do i resolve it? I was on Google Chrome but had so many problems with them retaining info that was unauthorized or them switching me on and off of web pages - it was pathetic so I switched to Foxfire. Thank You mh