stop the firefox popup or I'll stop using Yahoo?

[Fred]

I'll set my computer the way I want it to be. I have my browsers set the way I want them to be, but every time I open Yahoo the popup trying to get me to change my Firefox home page to Yahoo and as far as I can tell there's no way to stop it and I have to X it out over and over. I like Yahoo but it's a pain having to deal with this all the time. If it doesn't stop I'm considering stop using Yahoo all together. Fix this problem please, I'm not concerned with any deals you have with others just the deal you have with me.