I opted into an experimental new Stack feature (coming soonish!), and now I want to opt back out. To do so, all I have to do is delete a cookie called
purple. It should be easy. Just go to Safari preferences, privacy, cookie details, and...
I don't want to delete all of my Stack Exchange cookies, just the one I know the name of. Can I delete this cookie through Safari? If not, where do Safari's cookies live, so I can delete it by hand?