Assuming this proposal is adopted in some sense, how much time until Firefox (the alternative big name browser in this case) - or more specifically Mozilla, the

Assuming this proposal is adopted in some sense, how much time until Firefox (the alternative big name browser in this case) - or more specifically Mozilla, the browser vendor - does something that Google doesn't like while adhering to the specs? This is putting the power in the hands of browser vendors after all. Letting Google - the advertising conglomerate that "vends" its own browser - use its industry sway to publish standards that give power to browser vendors is concerning because Google already has its finger in that pie also. They've already begun to track users through Chrome itself now with account tie-in in the actual application. Google can now play friendly and claim to be keeping web advertising at bay, while siphoning increased amount of data directly from the user's browser - no JavaScript required.