It's still worth it because you really don't even have to think about it.

I don't use any Google products/services except when I need to at work. Firefox is perfectly fine for now; I agree that Mozilla's future is concerning but there is absolutely no downside to sticking with Firefox for now.

It's too bad that Mozilla doesn't push for more adoption; the vast majority of users would never know the difference between Firefox and Chrome once they're browsing. It's not like it's an inferior product.