The company has been working closely with Everything.me on "creating a compelling content experience" for the Firebox browser.
Firefox programmers reconsidered their opposition to Google's image format for two reasons: new data showing graphics files 30 percent smaller for faster page loads -- and that the info came from a close ally.
Possible targets have included Atari, Unity Technologies, Green Throttle Games, Glympse, Rounds, and Everything.me, according to The Wall Street Journal.
As Mozilla continues to develop Firefox OS, the company reveals at CES 2013 changes to the OS that can turn Web sites into apps.
It's a major endorsement for the file format, but some social-network members are upset to have lost their flexible, sharable JPEGs.