Roduga said:1) Browse to Google like "http://www.google.co.uk".
2) Replace all that with "javascript:alert(document.cookie="PREF=ID=fb7740f107311e46:TM=1142683332:LM=1142683332:S=fNSw6ljXTzvL3dWu;path=/;domain=.google.com")"
3) Hit return and 'OK' the box that pops up.
4) Search for anything.
5) Be annoyed.
Did that, looks the same?