TinyFilter is the best free Adult Blocker (Parental Control) addon that blocks access to porn sites (adult content, pornography).
FREE WebFilter: Parental Control & Anti-Pornis a light-weight and FREE web content filtering application which monitors browser activities and blocks inappropriate or offensive content.
The extension helps you fully customize your filtering preferences and sensitivity settings so that any inappropriate or offensive content is filtered. We are very proud of our product and are very happy that is helping protect children, teens and adults from inappropriate content on the Internet. We're confident that you will agree thatFREE WebFilter: Parental Control & Anti-Porn is the most simple and effective extension for filtering inappropriate content.