Firefox opens instead of my homepage. My homepage (comcast) use to open first. Since updating to FF 10.0.1 Firefox now opens first. How can I stop the FF page from opening first ?

Since up dating to FF 10.0.1 Firefox (congratulations page) opens first instead of my normal homepage (comcast). \ How can I stop this from happening when I open my browser. I do not want the FoxFire page to open, I want my homepage to open instead. thank you.