Mozilla is probably in the best position to do something. If it's good enough to get developers to switch and rave about it, ms and google will follow to keep mindshare.
JavaScript was invented by Netscape, the predecessor of Mozilla. Also Firefox came out in a phase of browser stagnation, but Chrome in particular and the other browsers are so powerful today that I'm more worried we're going to loose web standards to "whatever WebKit does". So I wouln't hold my breath.