At this point why dont they create a Firefox2 or a FirefoxNG browser with all of the new features, bring over the users automatically and essentially fork the dev? Just like with Seamonkey that kept the browser suite that was Mozilla going, we can keep the old FF1v44 version going. That way the old guys like us can backport the software improvements of FF2 and keep our old extensions. I have a feeling that many of the awesome extensions that exist solely on Firefox will die out because of the loss of functionality. Without those the browser starts to look a lot less appealing.
At this point they might as well just rename it PrivacyFox and go the way of Opera, just use Blink but strip out all the tracking. Crankshaft JS could use a bunch more devs.