My Firefox updated today, it's now on version 25. Since then Digg Digg has stopped working completely, other than a blank empty floating box with the word "false" underneath it.
I checked it in Chrome and the same problem happens there, but in Internet Explorer 10 it works just fine. Just wondered if you were aware of this and perhaps if you are working on an update? My website is bobinoz.com if you want to take a look.