Oh, yes. That was always one of the things I would tell people having trouble with JD. Firefox doesn't seem to work well with some technology we were using. I never figured out what, but maybe DiceBitco.in has the same issue with Firefox.
I've never had an issue with it using Chromium (well, I've had lots of issues, but nothing like this).
Also (look, two subjects in one post!), I just noticed that hitting the return key when typing my stake amount places a bet. I don't think that's a good idea; it's too easy to hit return accidentally before I've finished specifying the bet fully.
Im curious of whats the issue with FF, we will ook deeper into it. As for the return button, good point. We will push that too in the next update!
It seems to be a JavaScript issue. For me it is next to impossible to even enter my credentials (let alone login) in Firefox when I try to login into my account (CPU load being 100% at the moment).