I just migrated my website from a subdomain to the root by using this link.
It works in all browsers except firefox/IE, in firefox the fonts and icons are distorted.
The website is as here
I have had this problem before, Firefox and IE do not allow any cross-domain font requests (which is correct by spec) but Chrome/Webkit does.
This means Firefox & IE will not load your fonts because they are still on your test sub-domain but your site has moved.
All you need to do is move your fonts to the main domain and all will be sorted!
If you can't move your fonts or want to use serve your fonts from a CDN check out David Walsh's post
Cheers Sam.
Because Firefox ignores fonts from a different domain. So if your site is http://blabla.bla and you want to use a font from http://fontfont.font Firefox ignores it. There is a workaround: Why don't web fonts in Firefox work on a different domain?