Anybody know how to get Safari to “sanitize” on shutdown (delete cookies, cache, etc), except for whitelisted domains? After lots of fiddling I’ve realized this is probably the best privacy/convenience compromise for me, but Safari is the only browser I can’t even find a plugin to do it in.

s/Safari/Firefox/ and it is super simple to do this. I know that's not helpful to the question as asked, but possibly a better answer???

As for Safari, closest I see is Preferences -> General -> Remove History Items. It has options ranging from After One Day, one week, one month, never. I don't see an option for at quit like FF has.