Well I just got the new version of Firefox which is the 30.0 version I believe, and my themes aren't working. It's a bit frustrating and I've been scouring the internet and fiddling around with it for about 2 hours and now and honestly it's getting repetitive. Could you possibly help? I click the "Add to Mozilla Firefox" button on the theme thingy and it doesn't add; I go to my downloaded themes section and press "Enable" but the theme still doesn't show up. It's just my default grey. If you could help, thanks.