Open source and open format/specification/protocol are quite different concerns, and in fact the problem here is with the latter, not the former: The modern we

Open source and open format/specification/protocol are quite different concerns, and in fact the problem here is with the latter, not the former: The modern web stack is so complicated that any current browser engine has a significant moat. In other words, the problem isn't that Chrome is not open source; the problem is the amount of work it takes to maintain or compete with it.