I'm writing this from Firefox, having used it ever since the days when Firefox releases used to have launch parties, and tabs was the revolutionary killer feature.
Let me rephrase the question: does Gecko/Spidermonkey have a future?
I think it's clear the Firefox branding will live on, since it is Mozilla's crown jewel.
But in today's landscape, you can target WebKit (Apple) and V8/Blink (Chrome) and you've surely covered 98% of all use cases.
Surely these competing engines have far, far more resources pouring into them than Mozilla can afford.
Since the balance of power has shifted towards the owners of these huge players, how can Mozilla keep its browser engine competitive, given that all these new features (such as wasm) surely require massive investment?
I know these questions have been asked already a million times, but it keeps me wondering. Will Firefox eventually need to become a fork of Chromium like everyone else, just to keep pace? Can Mozilla keep its entire browser stack afloat in these shifting currents? (pardon the gross metaphor)