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Is Mozilla's mobile OS good for games? See for yourself

Telefonica shows prototype phone using B2G, Mozilla's browser-based OS. It can't match today's higher-end smartphones, but it'll be good enough to sell by year's end, allies say.

Stephen Shankland Former Principal Writer
Stephen Shankland worked at CNET from 1998 to 2024 and wrote about processors, digital photography, AI, quantum computing, computer science, materials science, supercomputers, drones, browsers, 3D printing, USB, and new computing technology in general. He has a soft spot in his heart for standards groups and I/O interfaces. His first big scoop was about radioactive cat poop.
Expertise Processors, semiconductors, web browsers, quantum computing, supercomputers, AI, 3D printing, drones, computer science, physics, programming, materials science, USB, UWB, Android, digital photography, science. Credentials
  • Shankland covered the tech industry for more than 25 years and was a science writer for five years before that. He has deep expertise in microprocessors, digital photography, computer hardware and software, internet standards, web technology, and more.
Stephen Shankland
2 min read
A demonstration of B2G (Boot to Gecko) at Mobile World Congress shows that Mozilla's browser-based mobile OS can send and receive text messages. It also can send and receive calls, play games, and be used to read e-books.
A demonstration of B2G (Boot to Gecko) at Mobile World Congress shows that Mozilla's browser-based mobile OS can send and receive text messages. It also can send and receive calls, play games, and be used to read e-books. Stephen Shankland/CNET

BARCELONA, Spain--Telefonica today showed off B2G, the Mozilla browser-based operating system for mobile phones, saying it's good enough to sell to today's feature-phone customers later this year.

You may or may not agree. To help you judge, here's a video of Carlos Domingo, Telefonica Digital's director of product development and innovation, demonstrating a prototype phone at a press conference today at the Mobile World Congress show here. At the event, Telefonica announced its mobile OS pact with Mozilla.

Having watched the demo myself, the phone looked workable but awfully pokey. And touch input-- specially the keyboard--was evidently a challenge. These are early days for B2G (which stands for Boot to Gecko), but in the meantime iOS and Android show no signs of slowing down, and Windows Phone is gaining adherents.

Top-end performance isn't everything, though. Telefonica's BTG-based phone will cost a tenth what an iPhone costs, Domingo said in an interview.

Mozilla argues that because the Web engine runs directly on Linux, without the intermediate software layers used in iOS and Android, it can use lower-end hardware. The demonstration used a Qualcomm-built reference design with a 480x320 pixel screen. Domingo used it put a call through to another phone, sent and received text messages, won a score of 317 at the HTML5 test Web site, played two lightweight games, and read a Frankenstein e-book.

Mozilla Chief Technology Officer Brendan Eich doesn't pretend it's up to the challenge of 3D graphics. But he does say the phone is advancing rapidly.

The BTG operating system, which combines Mozilla's Gecko browser engine with a Linux kernel hidden underneath, runs Web apps, not native apps, which means they use Web standards such as JavaScript, HTML, CSS, and WebGL. That's good for many games and sites with Web-based interfaces today, but it'll take some convincing for other programmers. And iOS and Android have a lot of programmers on board already.

Carlos Domingo, Telefonica Digital's director of product development and innovation, announces the carrier's plan to embrace Mozilla's B2G browser-based mobile OS at Mobile World Congress.
Carlos Domingo, Telefonica Digital's director of product development and innovation, announces the carrier's plan to embrace Mozilla's B2G browser-based mobile OS at Mobile World Congress. Stephen Shankland/CNET