Recent Articles

  • @media, MathML, and Django 1.11: MDN Changelog for May 2018

    May's MDN changelog highlights lots of stuff that got shipped to make MDN Web Docs so much better all the time. The team, with help from numerous contributors, migrated CSS @media and MathML compat data, prepared for Django 1.11, started tracking work in ZenHub, continued the HTML Interactive Examples project, and shipped tweaks and fixes by merging 397 pull requests, including 60 pull requests from 43 new contributors.

  • Overscripted! Digging into JavaScript execution at scale

    We set out to explore the unseen or non-obvious JavaScript execution events that are triggered when a user visits a webpage, and all the first- and third-party events that are set in motion when people retrieve content. To help enable more exploration and analysis, we are releasing our full set of data about JavaScript executions. This post introduces the dataset, how it was collected, and the decisions made along the way. We’ll share examples of insights discovered and provide information for participating in the associated Overscripted Web: A Mozilla Data Analysis Challenge, which we’ve launched today with Mozilla’s Open Innovation Team.

  • Baby’s First Rust+WebAssembly module: Say hi to JSConf EU!

    A secret project has been brewing for JSConf EU, and this weekend is the big reveal: The Arch is a larger-than-life experience that uses 30,000 colored LEDs to create a canvas for light animations. And you can take charge of this space. Using modules, you can create a light animation. But even though this is JSConf, these animations aren’t just powered by JavaScript modules. In fact, we hope you will try something new… Rust + WebAssembly.

  • A cartoon intro to DNS over HTTPS

    At Mozilla, we closely track threats to users' privacy and security. This is why we've added tracking protection to Firefox and created the Facebook container extension. In today's cartoon intro, Lin Clark describes two new initiatives we're championing to close data leaks that have been part of the domain name system since it was created 35 years ago: DNS over HTTPS, a new IETF standard, and Trusted Recursive Resolver, a new secure way to resolve DNS that we’ve partnered with Cloudflare to provide.

  • Progressive Web Games

    Web game developer Andrzej Mazur explores the concept of Progressive Web Games. He describes howe to use PWA features built with Web APIs for modern game development. He introduces the Enclave Phaser Template (EPT) — a free, open sourced mobile boilerplate for HTML5 games that provides many shortcuts for getting started.

  • New in Firefox 61: Developer Edition

    The latest release -- Firefox 61 Developer Edition -- comes with a darker dark theme, more powerful and customizable developer tools, the new Accessibility Inspector, and numerous performance improvements like better CSS stylesheet parsing and improved time to first paint.

  • Debugging Modern Web Applications

    The Firefox Dev Tools team released an upgrade to the debugger’s source map support. It lets you inspect the code that you actually wrote. Combined with the ongoing work to provide first-class JS framework support across all Firefox devtools, these advances boost productivity for web app developers working in frameworks like React, Angular, and Ember and with modern tools like Webpack, Babel, and PostCSS.

  • Visualizing Your Smart Home Data with the Web of Things

    Today we're mashing up two very different applications to make a cool personal dashboard for investigating all our internet-connected things, and their behavior over time. We can use one of the Web Thing API's superpowers: its flexibility. This adaptability allows us to create a bridge between the Project Things gateway and Cloud Native Computing Foundation’s Prometheus, a time-series database originally intended for supervising large clusters of servers.

  • Firefox 60 – Modules and More

    Firefox 60 continues the evolution of Quantum. The parallel processing of Quantum CSS comes to Firefox for Android, while WebRender work is ongoing. Potch reports on two security upgrades - support for the Web Authentication API and for the Same-Site attribute for cookies - as well the arrival of ES modules. Firefox Quantum for Enterprise, our Extended Support Release, is now available for large installations. Read all about it!

  • CDN, BCD, and SVG: MDN Changelog for April 2018

    The MDN engineering team reports on work accomplished in April and what's ahead in May. Some highlights: MDN Web Docs site moved to a CDN, improving page load time by 16%. The migration of browser compatibility data (the BCD project) continues apace, and is now 72% done. The team began the work of replacing font-based icons with inline SVG; the work to improve accessibility and localization with SVG icons continues. In April, 510 pull requests were merged, including 140 pull requests from 57 new contributors.

  • Creating Web Things with Python, Node.js, and Java

    Discover how to build web things with Python, Node.js, or Java using the Things Framework. These languages are definitely not optimal for small embedded devices; this tutorial is intended for higher-end devices that can run these languages with ease, or even your own desktop computer. To demonstrate, we’ll be turning the Music Player Daemon (MPD) into a web thing.

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