I had a recent problem with InternetNews.com: its adverts were causing Firefox to lock up my CPU. While I do put my CPU through its paces, I’d rather that others didn’t decide to do the same and with things that do not add a great deal of value. So it was time to set ZoneAlarm loose by cranking up its ad blocking to the max. There are occasions where exceptions are needed and right-clicking on a domain name in the site list in the Privacy area allows you to relax things on a site by site basis. Obviously, you need to know the website well but I don’t ever remember having this sort of control with Norton Personal Firewall when I had it on my main PC.