DOM Articles
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Hopping on Firefox 91
August is already here, which means so is Firefox 91! For developers, Firefox 91 supports the Visual Viewport API and Intl.DateTimeFormat object additions.
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Safely reviving shared memory
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. Shared-memory multi-threading is an essential low-level building block for high-performance applications. However, keeping users safe is paramount, which is why shared memory and high-resolution timers were effectively disabled at the start of 2018, in light of Spectre. Until now...
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How accessibility trees inform assistive tech
The web was designed with built-in features to make accessibility possible; these have been part of the platform pretty much from the beginning. In recent times, inspectable accessibility trees have made it easier to see how things work in practice. In this post we look at how “good” client-side code (HTML, CSS and JavaScript) improves the experience for users of assistive technologies, and how developers can use accessibility trees to help verify that these users aren't left out.
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The Power of Web Components
Web Components comprises a set of standards that enable user-defined HTML elements. These elements can go in all the same places as traditional HTML. Despite the long standardization process, the emerging promise of Web Components puts more power in the hands of developers and creators.
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Building the DOM faster: speculative parsing, async, defer and preload
In 2017, the toolbox for making sure your web page loads fast includes everything from minification and asset optimization to caching, CDNs, code splitting and tree shaking. Understanding what goes on inside a browser is still the most powerful tool for every web developer. This article breaks down how
deferandasyncwork and how you can leverage the new keywordpreload. -
An inside look at Quantum DOM Scheduling
Scheduling is a significant piece of Project Quantum, which focuses on making Firefox more responsive, especially when lots of tabs are open. In this article, we describe problems we identified in multi-tab browsing, the solutions we figured out, the current status of Quantum DOM, and opportunities for contribution to the project.
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Internationalize your keyboard controls
Recently I came across two lovely new graphical demos, and in both cases, the controls would not work on my French AZERTY keyboard. There was the wonderful WebGL 2 technological demo After The Flood, and the very cute Alpaca Peck. Shaw was nice enough to fix the latter when I told him about the issue. […]
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The state of Web Components
Web Components have been on developers’ radars for quite some time now. They were first introduced by Alex Russell at Fronteers Conference 2011. The concept shook the community up and became the topic of many future talks and discussions. In 2013 a Web Components-based framework called Polymer was released by Google to kick the tires […]
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Mozilla and Web Components: Update
Editor’s note: Mozilla has a long history of participating in standards development. The post below shows a real-time slice of how standards are debated and adopted. The goal is to update developers who are most affected by implementation decisions we make in Firefox. We are particularly interested in getting feedback from JavaScript library and framework […]
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ServiceWorkers and Firefox
Since early 2013, Mozillians have been involved with the design of the Service Worker. Thanks to work by Google, Samsung, Mozilla, and others, this exciting new feature of the web platform has evolved to the point that it is being implemented in various web browser engines. What are Service Workers? At their simplest, Service Workers […]
