Mozilla functioning more as the reference browser for others to finish packaging and supporting sounds good to me because Mozilla doesn’t seem to be great at attracting general users or even picking what businesses to try and break into.

Unfortunately others are deciding on web standards mostly. Which makes it hard for it to keep up even if it were trying to be such.

Also Mozilla was kinda that, until it wasn't - because they decided to go the other way and because apparently they lacked money (doesn't look like that from their spending, but).