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  • Foundations for the Future

    This week the Servo project took a significant next step in bringing community-led transformative innovations to the web by announcing it will be hosted by the Linux Foundation.  Mozilla is pleased to see Servo, which began as a research effort in 2012, open new doors that can lead it to ever broader benefits for users and the web. Working together, the Servo project and Linux Foundation are a natural fit for nurturing continued growth of the Servo community, encouraging investment in development, and expanding availability and adoption.  

  • Firefox 83 is upon us

    Did November spawn a monster this year? In truth, November has given us a few snippets of good news, far from the least of which is the launch of Firefox 83! In this release we’ve got a few nice additions, including Conical CSS gradients, overflow debugging in the Developer Tools, enabling of WebRender across more platforms, and more besides.

  • Warp: Improved JS performance in Firefox 83

    With Warp (also called WarpBuilder) we’re making big changes to our JIT (just-in-time) compilers, resulting in improved responsiveness, faster page loads and better memory usage. The new architecture is also more maintainable and unlocks additional SpiderMonkey improvements. This post explains how Warp works and how it made SpiderMonkey faster.

  • MDN Web Docs evolves! Lowdown on the upcoming new platform

    The time has come for Kuma — the platform that powers MDN Web Docs — to evolve. For quite some time now, the MDN developer team has been planning a radical platform change, and we are ready to start sharing the details of it. The question on your lips might be “What does a Kuma evolve into? A KumaMaMa?”

  • MDN Web Docs: Editorial strategy and community participation

    We’ve made a lot of progress on moving forward with MDN Web Docs in the last couple of months, and we wanted to share where we are headed in the short- to mid-term, starting with our editorial strategy and renewed efforts around community participation.

  • Coming through with Firefox 82

    As October ushers in the tail-end of the year, we are pushing Firefox 82 out the door. This time around we finally enable support for the Media Session API, provide some new CSS pseudo-selector behaviours, close some security loopholes involving the property, and provide inspection for server-sent events in our developer tools.

  • A New Backend for Cranelift, Part 1: Instruction Selection

    This post will describe my recent work on Cranelift as part of my day job at Mozilla. In this post, I will set some context and describe the instruction selection problem. In particular, I’ll talk about a revamp to the instruction selector and backend framework in general that we’ve been working on.

  • To Eleventy and Beyond

    Porting an established static website from one generator to another can be daunting. In this post, Add-ons Engineering Manager Stuart Colville recounts the experience of migrating Firefox Extension Workshop, Mozilla’s site for Firefox-specific extension development resources, from the Ruby-based site generator Jekyll to JavaScript-based Eleventy.

  • An Update on MDN Web Docs

    Mozilla announced some general changes in our investments and we would like to outline how they will impact our MDN platform efforts moving forward. It hurts to make these cuts, and it’s important that we be candid on what’s changing and why.

  • js13kGames 2020: A lean coding challenge with WebXR and Web Monetization

    Announcing the return of the annual month-long competition for HTML5 game developers. For js13kGames contestants, the file size limit for all entries is set to 13 kilobytes of code. That's what makes this a code golf challenge. In addition to great prizes across a host of categories, including WebXR and Web Monetization, expert game reviewers provide valuable feedback on all submissions.

  • Changes to SameSite Cookie Behavior – A Call to Action for Web Developers

    Browsers are changing the default value of the SameSite attribute for cookies from None to Lax. This will greatly improve security for users. However, some web sites may depend (even unknowingly) on the old default, potentially resulting in site breakage. At Mozilla, we are slowly introducing this change. And we urge web developers to test their sites with the new default.

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