The preliminary Metro browser has reached the source code repository that feeds into Mozilla's 'Nightly' build channel
The device provides a general idea of what to expect when Firefox OS handsets debut in the coming months
The browser's mobile version is now available to 15 million more phones, Mozilla says.
Users can now keep their existing Firefox windows open when they launch a new private window.
Thanks to its renewed search partnership with Google, the Firefox maker's revenues are up 33 percent.
This free Web app brings new DIY capabilities to everyday users.
By enforcing HTTP Strict Transport Security (HSTS) for select domains, the beta version of Firefox 17 aims to enhance users' privacy and security online.