I have updated my Ubuntu 14.04 recently and got a new firefox (version 35.0). I have configured an empty starting page and my default search engine is configured to duckduckgo.
but: Since the update I get a google.com cookie called "PREF". When I remove that cookie, close firefox, and open firefox again, the cookie is back again.
Where does this cookie come from? How can I avoid that this cookie is set?
I did a small experiment: When I cut the network connection during the launch of Firefox, no Google cookie is set. So the real question is: Why is Firefox 35.0 contacting Google when I don't ask it to do so?