ProCon Latte Content Filter is a free content filter for the Firefox browser. It can filter any kind of material (pornography, gambling, hacking, cracking, etc…), it can also block all traffic, making sure that only desired websites (set in the Whitelist) can be accessed, and includes a profanity filter, all *like* a parental control filter.
This add-on has gotten a lot of great reviews for being one of the easier website blocking add-ons. If you have children that often browse and you can not be over their shoulder 24/7 – this add-on is for you.
Want to check it out? You can download the ProCon Latte Content Filter from the Firefox Add-ons website.