I have a MacBook my dad got used and he put all the memory from my previous laptop into it. I’ve never come across Endian Firewall before, so the previous user of this MacBook must have put it on here. I can’t seem to figure out how to remove the whole thing. It won’t let me go to harmless Disney websites and things like that, and it’s driving me absolutely bonkers. Will someone please give me a step-by-step solution?