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Firefox OS Tutorials

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    Web Audio API

    The Web Audio API allows developers to load and decode audio on demand using JavaScript.  The more I evaluate awesome games for Firefox OS TVs, the more I get to learn about these APIs that I normally wouldn't touch.  The following is a very basic introduction to the WebAudio API...

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    Spatial Navigation

    Spatial navigation is the ability to navigate to focusable elements based on their position in a given space.  Spatial navigation is a must when your site or app must respond to arrow keys, a perfect example being a television with directional pad remote.  Firefox OS TV apps are simply...

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    Get Element Dimensions After CSS Transform

    I've been playing a lot with meta viewports recently due to seeing many HTML5 TV apps coded explicitly for 1280x720 which you'll see on many HD televisions.  We all know that it's a much better practice to use responsive design than hardcode dimensions but, that aside, meta...

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    How to Test Firefox OS Apps on TV

    One of my responsibilities in my new role in Partner Engineering at Mozilla is testing HTML5-powered apps and games on Panasonic televisions.  The television in my office, a beautiful 60" 4K Ultra HD beast, is the perfect device for the job.  But how do I get the app...

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    Geeksphone Peak Firefox OS Unboxing

    Any time you get a new device it's like instant Christmas.  Whether it's top of the line or bottom of the barrel, we're always excited to check out unique devices to see what we can learn, check out what apps are popular, and test the websites we...

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    Remove Mobile Firefox Button Gradient

    If you have an Android device, you've gotta check out Firefox for Android.  It's an outstanding mobile browser -- it has been very well received and you can even install apps from the Firefox Marketplace from within this awesome browser.  One usability practice implemented by Firefox for...

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    Firefox OS Media Query

    Firefox OS is an awesome new HTML5-based mobile operating system.  Some would says it's epic, I just think it's...super epic.   The "native" languages are HTML, CSS, and JavaScript -- it's enough to make a Web Developer weep.  Anyways, it's important to know how to target...

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    5 Awesome New Mozilla Technologies You’ve Never Heard Of

    My trip to Mozilla Summit 2013 was incredible.  I've spent so much time focusing on my project that I had lost sight of all of the great work Mozillians were putting out.  MozSummit provided the perfect reminder of how brilliant my colleagues are and how much...

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    Firefox OS Phone Unboxing

    I may work at Mozilla but I was just as giddy as anyone to get my Firefox OS device.  I was able get one of the first test driver phones last year but there's something special about getting a finished (well, launch) product.  Here are...

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    Turn Your Web Application into a Firefox OS App in 5 Minutes

    One of the promises that comes with HTML5 mobile apps, especially those to be featured on Firefox OS, is that your existing web applications, if created properly (feature detection, responsive design, etc.), can be turned into a working mobile application in relatively little time.  And that's...