Oh neat, it seems my current Firefox (20) works with Persona now when third party cookies are disabled. This was a huge problem before when I was playing around

Oh neat, it seems my current Firefox (20) works with Persona now when third party cookies are disabled. This was a huge problem before when I was playing around with it a few months ago (it would flat-out never properly authenticate when I was testing it before). Didn't think the new cookie policy would roll out of testing so quickly.