It's a quick way to get around iframe requests when the site in question has something like frame-ancestors set and you're doing local development against it.

It's a quick way to get around iframe requests when the site in question has something like frame-ancestors set and you're doing local development against it. Ignoring the hosts file makes development more difficult. I like firefox and I develop for it first before chrome and safari but I don't agree with your assessment or theirs.