Image/Content filter? Rated 4 out of 5 stars

I would like to use this addon as an image filter, so I could filter out pornographic images for my children. Is it possible for the creator to add a modifiable list of explicit words to the addons preferences that could be used to filter out and replace only the images/content with these words used in their URL/description? I can't find any addon with this capability. ProCon Latte is great for blocking the entire websites, but still Google searches can yield explicit image results. Suggestions? Please help!!