DOM Articles
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Easy audio capture with the MediaRecorder API
The MediaRecorder API is a simple construct, used inside Navigator.getUserMedia(), which provides an easy way of recording media streams from the user’s input devices and instantly using them in web apps. This article provides a basic guide on how to use MediaRecorder, which is supported in Firefox Desktop/Mobile 25, and Firefox OS 2.0. What other […]
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getUserMedia is ready to roll!
We blogged about some of our WebRTC efforts back in April. Today we have an exciting update for you on that front: getUserMedia has landed on mozilla-central! This means you will be able to use the API on the latest Nightly versions of Firefox, and it will eventually make its way to a release build. […]
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DOM MutationObserver – reacting to DOM changes without killing browser performance.
DOM Mutation Events seemed like a great idea at the time – as web developers create a more dynamic web it seems natural that we would welcome the ability to listen for changes in the DOM and react to them. In practice however DOM Mutation Events were a major performance and stability issue and have […]
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Introducing Aurora 11 with tons of new features and improvements
We have now released Aurora 11, soon to become Firefox 11, and wanted to cover all the the things we have improved in this version!
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Announcing Firefox Aurora 10
We’re happy to announce the availability of Aurora 10. (Download and Test Aurora 10) In additional to the normal improvements that you’ve come to expect like performance, security and bug fixes, Aurora 10 focuses in HTML5 enhancements. New additions HTML5 Visibility API createProcessingInstruction WebGL antialiasing 3D Transforms Visibility API Document.mozFullScreenEnabled Developer Tools Code Editor CSS […]
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Introducing Aurora 9
We have just released Aurora 9 (download and test Aurora 9), which is planned to be the upcoming Firefox 9. In it, we have a number of new things that we hope will get you excited!
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Tagging docs for sprint at JSConf.eu October 1-2
We’re very excited to announce that Mozilla is sponsoring the Hacker Lounge at JSConf.eu and we will be holding a doc sprint at and during the conference. The focus of this doc sprint will naturally be docs for JavaScript and DOM. We hope to encourage attendees at the conference to contribute at least a little […]
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Animating with javascript: from setInterval to requestAnimationFrame
Animating DOM elements[1] or the content of a canvas is a classical use case for setInterval. But the interval is not as reliable as it seems, and a more suitable API is now available… Animating with setInterval To animate an element moving 400 pixels on the right with javascript, the basic thing to do is […]
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A call for quality HTML5 demo markup
HTML5 is a necessary evolution to make the web better. Before the HTML5 specs were created we used (and still use) a hacked together bunch of systems meant for describing and linking documents to create applications. We use generic elements to simulate rich interaction modules used in desktop development and we make assumptions as to […]
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HTML5 adoption stories: box.net and html5 drag and drop
This is a guest post from Tomas Barreto, a developer who works at box.net. They recently adopted HTML5 drag and drop as a way to share files with other people using new features in Firefox. The included video is a pitch for the feature and service, but shows how easy it is to do simple […]
