[Porsche-O-Phile]

Use ad blocker plus, little snitch (then configure to block requests from anything outside of the domain you’re actually trying to visit) and Stop the Madness plug-in on safari. Life is good. Some sites require a little tweaking to display right but all ads, pop-ups, ding-dings and forced manual password entries are gone. Obviously delete cookies a lot (and limit to the minimum needed on sites that you actually go to) and things are pretty nice. Also block Google anything - especially analytics.

It’s a shame that one needs to employ all these sorts of countermeasures but it’s worth it IMO.