The natural consequences of Mozilla spending money on everything except on creating a the best browser in the world and working on marketshare (written in Firefox).
I'm still mad at Mozilla for all their dumb decisions and arrogant behavior (case in point - actual FF devs responses on Reddit to the backlash against "uglybar", when they have radically chopped down functionality and UX of the old address bar, saying stuff that people who want sane UI are using it wrong and shifting blame in general).
Yeah, they've been doing strange things over there for sure. Still for Android their mobile version is way better than Chrome.
However, even if they did have the best browser how many installs would they get based on the quality of the browser? Most people don't care and those who care aren't significant slice of the pie.
Platforms dictate browser distribution because the average person is happy with what he god pre-installed or what google has shown as promo on their page.
What I like - not sure about Chrome - on mobile is the nav bar at the bottom.
They had >$6billion so I'm sure they could have put in some marketing and distribution partners.
Ladybird will show what one/very small team of devs can do developing a browser and what amount of $ could have been used for marketing and market share.