It's sad seeing this, but its also good to keep in mind - this standard was pushed by Microsoft, Google and others. As such its already "live" in Chrome (as of Release 25 if memory serves, current Chrome release is 29 I believe) as its in WebKit (so ad Safari and Opera as well). Microsoft will add it to IE if they haven't already - leaving Firefox and its slowly dwindling user base.
Since 75% of the PC web and nearly all of the mobile web will be making use of this - it'd be a market share death sentence for Mozilla to take a stand and say we just won't implement these "standards" in Firefox - (JMHO, but most general users would notice that what they want using this cgap works with Chrome, IE etc. and not with Firefox and just stop using Firefox making the Firefox user base melt away faster). I don't like Mozilla doing this, but I can easily understand why they are.