I have a MS Surface Pro 2 Tablet which was running Firefox 28 happily. After the update to 29, I was unable to load any page correctly from mozilla.org. It seems to not be able to load any content from cdn.mozilla.org from the information in the developer console. The content of the page loads, but not CSS or JavaScript. This impacts on the addons page, the start page, the plugins checking page and others. Firefox can correctly load every other page I've thrown at it and other browsers on the same machine can load the mozilla.org pages just fine. I've tried using FF in safe mode, resetting firefox, uninstalling and resinstalling and am not at a loss for what else to do. Any help would be appreciated.