For me, Firefox 4 stumbles at the first hurdle
If I type a deliberately wrong password I get the "Bad Login" message from HN. If I type the password I think is right I don't get the "Bad Login" message, so it probably is right, but nor am I logged in. I get the orange bar instead of my familiar and comforting deep purple, and at the top right I get "login" instead of my username.
So I'm back to Chrome.
Just thought I'd report on the experience. If I thought there'd be any mileage in doing so I'd start looking for somewhere to report it, and provide as much feedback as I reasonably could. If it were one of you peeps I'd be helping you debug.
But I can't see any way to start that process at all, so I'm not even going to try. And there's a data point for you. If you screw up, make it easy for your customers to help you, and they will. Be thick-skinned enough to cope with the crap, and among it there'll be gems to help you.
Thanks.
You've started me wondering what they'll do about it. They'll probably blame HN.
Anyone else here using FF4 successfully to log in?
Since Firefox devs actually post here, you'd have a good chance of getting interest (though perhaps a more informative title on the submission would have helped that).
That is, unless you're trying to make a list of users who just logged in (http://news.ycombinator.com/item?id=639976), so you can DoS the server, in which case I didn't just log out and log back in.