Healthcare.Gov for Mac users: what works today

As of today, October 17, 2013, I am able to start an Obamacare application using Opera.

Safari did let me set up the account, but logging in just took me to a blank screen. Ditto with Firefox. But only random ol' Opera lets me actually start an application.  

Opera, this consultant thanks you. Sniff.

Browser Versions:
Safari 6.0.5
Firefox 24.0
Opera 17.0