It’s official, NRMA, an Australian insurance company, won’t give you a quote for travel insurance unless you use Internet Explorer.
Personally, I find this discriminatory. I’m not sure if there are laws to protect potential customers from discriminatory behaviour (there are if you’re a potential employee, and might be if you’re an existing customer).
I did the neighbourly thing and sent a message to them using their feedback form and will update this site if I hear back from them.