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  1. Pseudo elements, promise inspection, raw headers, and much more – Firefox Developer Edition 36

    Firefox 36 was just uplifted to the Developer Edition channel, so let’s take a look at the most important Developer Tools changes in this release. We will also cover some changes from Firefox 35 since it was released shortly before the initial Developer Edition announcement. Read more…

  2. Mozilla and Web Components: Update

    Editor’s note: Mozilla has a long history of participating in standards development. The post below shows a real-time slice of how standards are debated and adopted. The goal is to update developers who are most affected by implementation decisions we make in Firefox. We are Read more…

  3. Introducing the JavaScript Internationalization API

    Firefox 29 issued half a year ago, so this post is long overdue. Nevertheless I wanted to pause for a second to discuss the Internationalization API first shipped on desktop in that release (and passing all tests!). Norbert Lindenberg wrote most of the implementation, and Read more…

  4. QuaggaJS – Building a barcode-scanner for the Web

    Have your ever tried to type in a voucher code on your mobile phone or simply enter the number of your membership card into a web form? These are just two examples of time-consuming and error-prone tasks which can be avoided by taking advantage of Read more…

  5. Videos and Firefox OS

    Before HTML5 Those were dark times Harry, dark times – Rubeus Hagrid Before HTML5, displaying video on the Web required browser plugins and Flash. Luckily, Firefox OS supports HTML5 video so we don’t need to support these older formats. Video support on the Web Even Read more…

  6. Mozilla Hacks gets a new Editor

    Almost three and a half years ago I wrote my first article for Mozilla Hacks and have been the Editor since September 2012. As the face and caretaker of this blog for such a long time, having published 350 posts in two years, I want Read more…

  7. Firebug 3 & Multiprocess Firefox (e10s)

    Firebug 3 alpha was announced couple of weeks ago. This version represents the next generation of Firebug built on top of Firefox native developer tools. There are several reasons why having Firebug built on top of native developer tools in Firefox is an advantage — Read more…

  8. MetricsGraphics.js – a lightweight graphics library based on D3

    MetricsGraphics.js is a library built on top of D3 that is optimized for visualizing and laying out time-series data. It provides a simple way to produce common types of graphics in a principled and consistent way. The library supports line charts, scatterplots, histograms, barplots and Read more…

  9. Save the Web – Be a Ford-Mozilla Open Web Fellow

    This is a critical time in the evolution of the Web. Its core ethos of being free and open is at risk with too little interoperability and threats to privacy, security, and expression from governments throughout the world. To protect the Web, we need more Read more…

  10. Visually Representing Angular Applications

    This article concerns diagrammatically representing Angular applications. It is a first step, not a fully figured out dissertation about how to visual specify or document Angular apps. And maybe the result of this is that I, with some embarrassment, find out that someone else already Read more…