What are kids' Web browsers -- and do I need one?
Kids' Web browsers typically offer a selection of kid-friendly content including videos, games, and activities. Some provide a closed environment with no access to the wider Internet, whereas others use a search filter that will return only age-appropriate results. Many cost money. Instead of installing a new browser, you can opt to simply change your default search engine to one designed specifically for kids. These filter out age-inappropriate content, but they don't offer special content for kids.
For some families, they may be a good short-term investment; they're like training wheels for the Internet. One downside is that kids can outgrow them quickly, and determined kids can defeat them. Also, you still need to teach responsible Internet use even if your kids use their own browsers.