Yeah I was being a bit snarky. I didn't mean to imply that mainstream browsers are anywhere near phasing that ability out (at least yet). However consider Firef

Yeah I was being a bit snarky. I didn't mean to imply that mainstream browsers are anywhere near phasing that ability out (at least yet). However consider Firefox policies regarding extension signing (specifically code review), or major mobile platform policies regarding user access to app data. Or a certain Google policy regarding add blockers, err sorry I mean protecting user data from malicious extensions. I think there's a pretty clear theme that the end user is to be regarded as an adversary and his behavior controlled.