FireFox is not a failing product, it is the only product they have that is not failing and pursuing shiny and new stuff that nobody needs (despite the corpspeak there) is only going to accelerate that towards becoming the truth.
Mozilla is a one-trick pony (well, they were a two trick pony but then they decided to murder Thunderbird and then retracted it or whatever they did, it also confused the hell out of me when they pulled that one). And they now have to accept that, deal with it and focus on being the very best one trick pony they can be.