Hush is a simple app (Safari extension) that blocks requests "to accept cookies or privacy invasive tracking", i.e. the requests web sites added to comply with EU and California privacy laws. I'm not sure if that means that you are accepting those trackers or you're not or maybe it doesn't change whatever the settings are for a web site. I guess if you're like me, who tends to dismiss that privacy dialog without bothering to look at how to change/set settings, then this is a perfect app.