The current spend on Firefox development is only about $290 million per year, not the $1.5bn you're talking about...
But at the end of the day, it's not the amount of money that matters, it's the goals of the people running it.
> it's not the amount of money that matters
I think that matters quite a bit. Otherwise, if you've got a spare $1,000, build us a browser. Maybe vibe code it?
If you sell it on Steam or the Mac App Store we’re talking about a minimum of 30% gone off top.
Marketing costs money. Taxes, etc. Not everyone is going to pay the full 150$. Various discount programs would probably exist.
Anyway, even if my numbers are off not enough people will pay for a browser for this to be a viable business.
If you disagree you can start today and I’ll gladly subscribe. Not a fork, no build a new browser from scratch with feature parity to chrome