If you install Firefox Focus, you can use its as blocking in all browsers. I use it in regular Safari. I can’t remember if this happens by default after insta

If you install Firefox Focus, you can use its as blocking in all browsers. I use it in regular Safari. I can’t remember if this happens by default after installing Focus, but if you go to Settings - Safari - Content Blockers, you can enable/disable the Firefox Focus blocker for regular Safari.