There are limited free parental control and internet filter products for home users. Most of the free products slow down the system during internet surfing. Hope Comodo can look into this suggestion and produce a parental control/internet filter as good as its firewall.
Parental Control and Internet Filter
I agree, there needs to be a good free web content blocker and parental control app. I have too many applications running related to spyware blocking, ip filtering, content filtering, popup blocking,
etc. We need one well written program to do all of this.
Have you tried Proxomitron for a web filter?, it works pretty well on level 4, but there is no parental features.