If you run Firefox (or any of the forks), run uBlock Origin. Many ads are malicious. If a site won't open or won't function properly because you're using an ad blocker, leave the site. It really is as simple as that.

#privacy #security
@cmccullough
On Android, there's also personalDNSFilter (see f-droid), and, IIRC some tool from Mozilla, which filter dns queries,