When I open a new tab is doesn't open to my set homepage as it would if opening firefox from start. It instead opens to a "default" page with pogo powered by yahoo, I want to change to google. How do I do this?

Opening firefox from begining, I have been able to set it to always open to google as it was in my old firefox default settings. If I remember correctly when you opened a tab, it would automatically open to the homepage. I'm not expierencing this with the new version. It is automatically going to the default page rather than the set homepage. (I just have learned to prefer the google search over the yahoo search over the years and am resistant to changing over, sorry)