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Panasonic's 4K Firefox OS TV

Panasonic's 4K Firefox OS TV

Panasonic's 4K Firefox OS TV

Panasonic's 4K Firefox OS TV

Panasonic's 4K Firefox OS TV

Panasonic's 4K Firefox OS TV

Panasonic's 4K Firefox OS TV

Panasonic's 4K TV uses Firefox OS, a browser-based operating system, to offer apps and configuration options. It's the first device that's part of Mozilla's attempt to branch out beyond PCs and smartphones. The 4K (aka Ultra HD) TV will ship this spring.

Caption by / Photo by Stephen Shankland/CNET

The apps section is a customizable list of online destinations, including browser bookmarks.

Caption by / Photo by Stephen Shankland/CNET

Of course, the Firefox OS TV comes with a browser.

Caption by / Photo by Stephen Shankland/CNET

Two remote controls are possible, one with a touch pad and one with an array of buttons.

Caption by / Photo by Stephen Shankland/CNET

Navigating to the devices section lets people select input ports or mirror the display to another device. It also automatically shows whatever devices it can find.

Caption by / Photo by Stephen Shankland/CNET

The main screen visible when you turn on Panasonic's 4K TV shows a user-configurable list of icons to launch various stations or services. Panasonic announced the TV at CES in January but showed it at Mobile World Congress two months later.

Caption by / Photo by Stephen Shankland/CNET

Interactive TVs, which let people do things like play games and browse the Web, haven't been much of a success. The top use is typically streaming video.

Caption by / Photo by Stephen Shankland/CNET
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