I downloaded a version of VLC and got hit with some Malware programs and I got rid of a couple but I cannot get rid of these 2, istartsurf and Jungle net.

I am using Mozilla Firefox and found Jungle Net listed in the Menu - Add Ons - Extension and deleted it but its still popping up but I cannot find istartsurf, any help please?
I searched in Programs and dleted what I thought were that but no joy.
I have seen several programs claiming to delete istartsurf but I am not game enough to try them in case they too are fakes.