I think it's dead unless Mozilla changes its mind or some other company decides to take up the mantle. I doubt an open-source project this ambitious can survive without paid maintainers. And then on top of that, a whole lot of institutional knowledge has been suddenly scattered to the winds.
Everyone has to walk on eggshells around anything that might affect the Google search deal, but that's mostly it. If anything the Google money is resented, even though it also funds everything.
IMHO leadership always lacked imagination around Firefox, and never had the fortitude to back any alternate investment enough for it to succeed.
You're being downvoted because you're airing an uncomfortable truth. Deep down they know you are right but they don't want to admit it so they downvote you.
It's a natural human trait; I doubt Lobster is any better.
Software is never alive nor dead. The question is if it can keep up with the moving target of modern web standards, or if it can even provide limited compatibility.