I am trying to enable safe search to keep my child's web browsing porn free however none of the answers to my question online give me explicit step by step instructions on how to enable this feature on fire fox. Please try not to be egg head about it just give me non techie step by step instruction on what to click on to enable this feature else I have to use MS_Edge which allows me to do this with their built in parental controls. I would rather use fire fox because it is faster but I need to know how to ensure that my child's browsing will be safe on fire fox.

Thanks