1. Firefox, YouTube and WebM

    • by Christopher Blizzard • Featured Article, Firefox 4, HTML5, Standards, Video • 96 comments

    Five important items of note today relating to Mozilla’s support for the VP8 codec: 1. Google will be releasing VP8 under an open source and royalty-free basis. VP8 is a high-quality video codec that Google acquired when they purchased the company On2. The VP8 codec Read more…

  2. Firefox 4: the HTML5 parser – inline SVG, speed and more

    • by Christopher Blizzard • Firefox, HTML5, Performance, Standards, SVG • 66 comments

    This is a guest post from Henri Sivonen, who has been working on Firefox’s new HTML5 parser. The HTML parser is one of the most complicated and sensitive pieces of a browser. It controls how your HTML source is turned into web pages and as Read more…

  3. Beyond HTML5: experiments with interactive audio

    • by Christopher Blizzard • Audio, Device APIs, Featured Demo, Firefox, HTML5, JavaScript, Multi-touch, Video, WebGL • 12 comments

  4. WebSockets in Firefox

    • by Christopher Blizzard • Feature, HTML5, Performance, Standards, WebSocket, XMLHttpRequest • 40 comments

    Here’s the pitch for WebSockets: a low-complexity, low-latency, bi-directional communication system that has a pretty simple API for web developers. Let’s break that down, and then talk about if and when we’re going to include it in Firefox: Low-complexity The WebSocket protocol, which is started Read more…

  5. a series of updates on what’s coming in Firefox 4

    • by Christopher Blizzard • Firefox • 11 comments

    Over the next couple of weeks, people like Paul Rouget and I are going to post a series of updates on a bunch of technologies that are part of our next release. That release, likely called Firefox 4, was underway before the release of Firefox Read more…

  6. Theora on N900

    • by Christopher Blizzard • HTML5, Mobile, Performance, Video • 4 comments

    This is a re-post from Matthew Gregan’s personal weblog on the work that he’s been doing to bring HTML5 open video to mobile devices. Google recently announced funding for some work to bring Theora to ARM devices via a CPU-driven code path. Mozilla has been Read more…

  7. mozilla developer preview 4 ready for testing

    • by Christopher Blizzard • Featured Article, Firefox, Performance, Security, Standards • 8 comments

    Note: this is a re-post of the entry in the Mozilla Project Development Weblog. There’s some juicy stuff in here for Web Developers that need testing. In particular, this is the first build with the CSS history changes. As part of our ongoing platform development Read more…

  8. privacy-related changes coming to CSS :visited

    • by Christopher Blizzard • CSS, Firefox, Security • 171 comments

    For more information about this, have a look at David Baron’s post, the bug and the post on the security blog. For many years the CSS :visited selector has been a vector for querying a user’s history. It’s not particularly dangerous by itself, but when Read more…

  9. a quick note on JavaScript engine components

    • by Christopher Blizzard • Feature, Firefox, JägerMonkey, JavaScript • 33 comments

    There have been a bunch of posts about the JägerMonkey (JM) post that we made the other day, some of which get things subtly wrong about the pieces of technology that are being used as part of Mozilla’s JM work. So here’s the super-quick overview Read more…

  10. Mozilla developer preview (Gecko 1.9.3a2) now available

    • by Christopher Blizzard • Feature, Firefox, HTML5, Performance • 14 comments

    We’ve posted a new release of our Mozilla developer preview series as a way to test new features that we’re putting into the Mozilla platform. These features may or may not make it into a future Firefox release, either for desktops or for mobile phones. Read more…