Good to see Kickstarter giving things like the the ability to be born. That's what it was designed for.
And the issue with more Firefly isn't money, it's the story itself, and how busy the actors and Whedon are right now. Whedon's on the hook for several more years tied up in film-making, and several of the major characters' actors are tied up in series that have years left in them, notably Nathan Fillion and Morena Baccarin. And then when you get everyone back and on board, there's still the pesky issue of reviving it with either a) fewer characters and subplots contributing to story, b) a complete restart, or c) major deus ex machina or outright redoing the ending to get everyone back into it. All three have major cons associated with them.
World Champion Seattle Seahawks football. It's an addiction, and there is no cure.