I don’t know what can prevent you from that 🤔 Maybe totally disabling JS?

Ublock Origin is enough as blocker (It’s so complete in terms of filters. also it’s recommended by Mozilla, and it’s very light). Also Decentraleyes for some third-party contents. Other blockers do the same (they usually use the same blocking lists, too). I only have these two, along with setting Firefox tracking protection to Strict. I guess it’s enough. (Though, you can see UBO wiki to have more advanced blockings.)