The involved fix is
here. Please read and understand it carefully.
Also note - because of the very nature of those type sites, that is, sites that cater to the seedier side of the Internet, those sites are also the sites badguys tend to wallow in, and distribute their malware. These type sites include gambling, porn, and P2P sites where illegal filesharing of copyrighted materials is tolerated. The best defenses are useless if the badguys are welcomed through opened doors. I don't not recommend visiting those type sites with a computer used for productivity work.