Vonteera Browser hijacker in about:config, how to remove?

Hello,
I have been infected by a Browser Hijacker, which posts ads on websites. It shows "ads by Volaro" and by doing some reading on the net, Vonteera is involved/ the cause. I have tried to clean the registry and removed several suspicious files from the respective folders in my profile, cleared the pref.js in Mozilla several times, no effect.
In the about:config, I have noticed two Vonteera processes, namely:
vonteera.randurls;{"tp|www.adnets|info|:srv1|do":1,"tps|www.adnetworkus|com|:srv1|analytics":1}
vonteera.randurlsdate;1415467507208
They keep coming back, even if I reset them. I am pretty sure they are the cause of evil.
Any idea how to circumvent this?

Well done.

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Vonteera Browser hijacker in about:config, how to remove?

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