Comment by badrabbit

It's not default on anything and gmail users naturally default to it. It doesn't market as much as MS and Google either. People using firefox specifically seek it out. I'd wager, at least 80% of users haven't heard of firefox.

I was on a call with people from big G several years ago, explaining issues I had with a product in firefox and out of 3-4 of their people (not engineers or very technical people), not one knew what firefox was, even as I shared my screen. I don't blame them, just pointing out how outside of tech people circles firefox does not really exist even as a term. Back in the day, it made a name for itself as an IE alternative but now it is forgotten thanks to Chrome.

I've worked at several big companies, one of the few policies they all had was "chrome is the only approved browser".