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  1. asm.js Speedups Everywhere

    • by and • asm.js, Featured Article, Games, JavaScript • 3 comments

    asm.js is an easy-to-optimize subset of JavaScript. It runs in all browsers without plugins, and is a good target for porting C/C++ codebases such as game engines – which have in fact been the biggest adopters of this approach, for example Unity 3D and Unreal Read more…

  2. Firefox Developer Edition 38: 64-bits and more

    • by and • Developer Tools, Featured Article, Firefox, Games • 23 comments

    In celebration of the 10th anniversary of Firefox, we unveiled Firefox Developer Edition, the first browser created specifically for developers. At that time, we also announced plans to ship a 64-bit version of Firefox. Today we’re happy to announce the next phase of that plan: Read more…

  3. Birdsongs, Musique Concrète, and the Web Audio API

    • by • Audio, Featured Article, WebAPI • 4 comments

    In January 2015, my friend and collaborator Brian Belet and I presented Oiseaux de Même — an audio soundscape app created from recordings of birds — at the first Web Audio Conference. In this post I’d like to describe my experience of implementing this app Read more…

  4. Synchronous Execution and Filesystem Access in Emscripten

    • by • asm.js, Featured Article, JavaScript • 2 comments

    Emscripten helps port C and C++ code to run on the Web. When doing such porting, we have to work around limitations of the web platform, one of which is that code must be asynchronous: you can’t have long-running code on the Web, it must Read more…

  5. What’s new in Web Audio

    • by and • Audio, Featured Article, JavaScript, WebAPI • 2 comments

    Introduction It’s been a while since we said anything on Hacks about the Web Audio API. However, with Firefox 37/38 hitting our Developer Edition/Nightly browser channels, there are some interesting new features to talk about! This article presents you with some new Web Audio tricks Read more…

  6. Embedding an HTTP Web Server in Firefox OS

    • by • Device APIs, Featured Article, Firefox OS, JavaScript, P2P Web, WebAPI • 14 comments

    Nearing the end of last year, Mozilla employees were gathered together for a week of collaboration and planning. During that week, a group was formed to envision what the future of Firefox OS might be surrounding a more P2P-focused Web. In particular, we’ve been looking Read more…

  7. Introducing node-firefox

    • by • Apps, Developer Tools, Featured Article, Firefox OS, Node.js • 13 comments

    NOTE: we presented this project last Sunday at FOSDEM, but not everyone could make it to Brussels, so here’s a post explaining what node-firefox is and how can it help you superturbocharge your Firefox OS app development! At Mozilla we’re always looking for ways in Read more…

  8. Project Silk

    • by • Featured Article, Firefox OS, Performance, Video • 23 comments

    Editor’s Note: An earlier version of this post appeared on Mason Chang’s personal blog. For the past few months, I’ve been working on Project Silk which improves smoothness across the browser. Very much like Project Butter for Android, part of it is finally live on Read more…

  9. Canvas 2D: New docs, Path2D objects, hit regions

    • by • Canvas, Featured Article • Comments off

    Over the last year, a couple of new HTML Canvas 2D features were implemented in Firefox and other recent browsers, with the help of the Adobe Web platform team. Over on MDN, the documentation for Canvas 2D got a major update to reflect the current Read more…

  10. Web Animation tools, Network Security insights, Font Inspector improvements and more – Firefox Developer Tools Episode 37

    • by • Developer Tools, Featured Article, Firefox, Firefox Development Highlights, Firefox Nightly • 2 comments

    A handful of bug fixes, improvements and some new features, of course, just landed in Firefox 37. Update your Firefox Developer Edition, or Nightly builds to try them out! Animation Inspector Panel A new API that’s quickly gaining traction is the Web Animations API, allowing Read more…