The Fira font family is the official typeface for Firefox OS, and you can now download it for free! Fira comes in a sans serif with 4 weights (light, regular, medium and bold), each accompanied by an italic style. The package also includes a monospaced variant with 2 weights (regular and bold).
The Web page includes an exceptionally useful guide to using each weight, and the package includes a comprehensive resource guide in PDF format, showing all the characters and how to access them.
Fira was created by Carrois Type Design of Berlin.
Jay Nelson is the editorial director of PlanetQuark.com, and the editor and publisher of Design Tools Monthly. He’s also the author of the QuarkXPress 8 and QuarkXPress 7 training titles at Lynda.com, as well as the training videos Quark includes in the box with QuarkXPress 7 . In addition, Jay writes regularly for Macworld and Photoshop User magazines and speaks at industry events.