Google search results changed in Firefox only

[chimpy]

Just before when I googled I noticed that the results page changed, it used to look like this http://i289.photobucket.com/albums/ll225/w...operagoogle.jpg and still does in Opera and Chrome and IE, but in FF it now looks like this http://i289.photobucket.com/albums/ll225/w...se/ffgoogle.jpg and also on some searches I see the sponsored links on the right hand side which I never ever used to.

I had a look in about:config but I do not know where to start to look for to fix it, I did not do anything it just up and changed on me. I was in sandboxie and closing that and re opening it has done nothing.

Anyone any idea on hope to get it back? even the colour in the "sign in" at the right hand top is a different colour now, its a lighter blue so I have not a clue as to what has happened.