Google search

[Guest Dark Sotonic Mills]

I'm running Firefox 3.16.18 (I don't like 4) and I've noticed that the Google search results are in a different format so I assume that there has been some sort of upgrade of the software. However, when I click links I am getting a blank tab with "clk (GIF Image, 1x1 pixels)" on the tab header. Is this just me or is there some sort of bug? I remember this happening a couple of years ago but I can't remember what I did to rectify it.