> There's an elephant in the room: why is maintaining a web browser costing $400M/y?
Is that actually the case though? I find it hard to believe that Mozilla has anywhere close to 1500 senior developers working on just Firefox. My guess is that the bulk of that money is spent on unrelated adventures and overhead.
Google Chrome is likely around $400M, while Mozilla's core browser team is around $200M but are technologically far behind. Hard to find precise numbers, it's just an order of magnitude estimate