Mozilla's fledgling Firefox OS has yet to seed out to actual consumers, but when it does an "easy and secure" payment platform should be in place. Announced via the company's developer-focused Hacks blog, navigator.mozPay() is a Javascript API crafted in the vein of Google Wallet, but with a key difference: it'll allow direct carrier billing and support for various payment providers. So when users trigger the 'Buy' button from with