It's funny, but just as I was reading your post a problem occurred while loading the page. I'm running Safari and Yosemite, on a MacBook Air.
Just FYI, and because I think it's useful for you to know this, I'm one of those who are experiencing these problems on the Campfire pretty much constantly now.
This is the only site - I haven't been to all the sites on the internet, admittedly - but this is the only site that I've been to on the internet, where this is happening to my computer.
It's annoying, and it results in my spending a little less time here, but as of right now I'm not inclined to change my browser just to deal with a quirk that I suspect you will eventually fix, by and by.
