Having precisely the same problem using both Safari and Chrome for Mac OS. As someone who has developed and managed website for 20 years, I'm kind of mystified that IB allows what are essentially malicious ads to ruin the user experience for visitors. Like several posters above, I've basically stopped coming to FT because of the issue. Because I've worked in the industry I'm opposed to ad blockers, but in this case I might have to try installing one.

But surely someone in authority has the ability to rein in some of these improperly coded ads? This isn't about users trying to put one over on you, but rather that FT is literally crashing our computers.