[ahje]

We've installed an ad-blocker and PrivacyBadger, and have remove administrative privileges for most older members of the family. All have been instructed in how to disable those two add-ons when there's a need for it.

So far, there's been no major incidents, as the ad-blocker filters out most of the crap on-line, and the lack of administrative privileges prevent the less knowable users from doing something dangerous.