With our commitment to building a better Internet, we want to provide web developers the tools they need to build great web experiences.

The 2020 MDN Web Developer Needs Assessment (DNA) report is now available! This post takes you through what we’ve accomplished in 2020.

As December ushers in the final curtain for this rather eventful year, there is time left for one more Firefox version to be given its wings.

After several intense months of work on such a significant change, the MDN Web Docs’ new platform (codenamed Yari) is finally launched!

In our previous post — MDN Web Docs evolves! Lowdown on the upcoming new platform — we talked about many aspects of the new MDN Web Docs platform that we’re ...

We are excited to announce the release of WebThings Gateway 1.0 and a new home for the WebThings platform.

Mozilla is pleased to see Servo, which began as a research effort in 2012, open new doors that can lead it to broader benefits for users.

In this release we’ve got a few nice additions: Conical CSS gradients, overflow debugging in the Developer Tools, enabling of WebRender.

We have enabled Warp, a significant update to SpiderMonkey, by default in Firefox 83. SpiderMonkey, the JavaScript engine used in the Firefox

The time has come for Kuma — the platform that powers MDN Web Docs — to evolve. “What does a Kuma evolve into? A KumaMaMa?”

A browser is an enormously complex piece of software, and it's always in development. About a year ago, we asked ourselves: how could we do better? Our CI relied heavily ...

We’ve made a lot of progress on moving forward with MDN Web Docs and we wanted to share where we are headed in the short- to mid-term.

Firefox 79 offers a new Promise method, more secure target=_blank links, logical assignment operators, tooling improvements for better JavaScript debugging, and many other updates of interest to web developers. In ...

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 ...

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, ...

At Mozilla, we want the web to be capable of running high-performance applications so that users and content authors can choose the safety, agency, and openness of the web platform. ...

We are pushing Firefox 82 out the door, with enabled support for the Media Session API, new CSS pseudo-selector behaviours and closed security loopholes.

MDN Web Docs turns 15 years old! This celebratory article highlights fifteen big wins of the last five years. With initiatives like the browser compatibility data project, learning areas and ...

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 ...

We launched Firefox Extension Workshop, using the Ruby-based static site generator Jekyll, and then realized that we needed to find an alternative and port the site.

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.