The FirefoxOS scenario would be Gecko embedding in FirefoxOS, so Mozilla is their own customer, and makes $ by being the controller of FirefoxOS - OS search, an

The FirefoxOS scenario would be Gecko embedding in FirefoxOS, so Mozilla is their own customer, and makes $ by being the controller of FirefoxOS - OS search, and configuration of browser search It's less likely the handset manufacturer would be able to change search bar defaults in those scenarios, at least without a stronger profit sharing negotiation, as they'd probably be already negotiating a more careful licensing & teaming agreement