See:
https://answers.launchpad.net/ubuntu/+ticket/4472
Installing the user agent switcher add-on in Firefox and changing the user agent solved the problem for me (although I still don't know what the cause of the problem is!!!
See:
https:/ /answers. launchpad. net/ubuntu/ +ticket/ 4472
Installing the user agent switcher add-on in Firefox and changing the user agent solved the problem for me (although I still don't know what the cause of the problem is!!!