> You should really be running the most popular browser

This amounts to giving Google effectively complete control over the web. I'm not sure that's a good idea. IMO it's important that Firefox and Safari remain popular enough that webdevs are forced to support them.

I'm somewhat sympathetic to "If you want to 'customize' your web experience, you shouldn't be surprised when things don't work right." in terms of turning off commonly-used features, but the request isn't to make it work right. OP just wants a helpful error message.