Welcome to JSFeeds
hello.js
NEW !!!
Tuesday, 17 December, 2019 UTC
Mozilla Hacks’ 10 most-read posts of 2019
Like holiday music, lists are a seasonal cliche. They pique our interest year after year because we want a tl;dr for the 12 months gone by. To summarize, Mozilla Hacks celebrated its 10th birthday this past June, and now in December, we come to the end ... moreTuesday, 10 December, 2019 UTC
Debugging Variables With Watchpoints in Firefox 72
The Firefox Devtools team, along with our community of code contributors, have been working hard to pack Firefox 72 full of improvements. This post introduces the watchpoints feature that’s available right now in Firefox Developer Edition! Keep reading ... moreThursday, 5 December, 2019 UTC
DeepSpeech 0.6: Mozilla’s Speech-to-Text Engine Gets Fast, Lean, and Ubiquitous
The Machine Learning team at Mozilla continues work on DeepSpeech, an automatic speech recognition (ASR) engine which aims to make speech recognition technology and trained models openly available to developers. DeepSpeech is a deep learning-based ASR ... moreWednesday, 4 December, 2019 UTC
Firefox 71: A year-end arrival
Another release is upon us: please welcome Firefox 71 to the stage! This time around, we have a plethora of new developer tools features. These include the web socket message inspector, console multi-line editor mode, log on events, and network panel ... moreTuesday, 3 December, 2019 UTC
Firefox 71: A winter arrival
Another release is upon us: please welcome Firefox 71 to the stage! This time around, we have a plethora of new developer tools features. These include the web socket message inspector, console multi-line editor mode, log on events, and network panel ... moreThursday, 21 November, 2019 UTC
Multi-Value All The Wasm!
This article is cross-posted on the Bytecode Alliance web site. Multi-value is a proposed extension to core WebAssembly that enables functions to return many values, among other things. It is also a pre-requisite for Wasm interface types. I’ve been adding ... moreTuesday, 19 November, 2019 UTC
Creating UI Extensions for WebThings Gateway
Version 0.10 of Mozilla’s WebThings Gateway brings support for extension-type add-ons. Released last week, this powerful new capability lets developers modify the user interface (UI) to their liking with JavaScript and CSS. Although the initial set of ... moreTuesday, 12 November, 2019 UTC
Announcing the Bytecode Alliance: Building a secure by default, composable future for WebAssembly
Today we announce the formation of the Bytecode Alliance, a new industry partnership coming together to forge WebAssembly’s outside-the-browser future by collaborating on implementing standards and proposing new ones. Our founding members are Mozilla, ... moreTuesday, 29 October, 2019 UTC
Auditing For Accessibility Problems With Firefox Developer Tools
Since its debut in Firefox 61, the Accessibility Inspector in the Firefox Developer Tools has evolved from a low-level tool showing the accessibility structure of a page. In Firefox 70, the Inspector has become an auditing facility to help identify and ... moreTuesday, 22 October, 2019 UTC
Firefox 70 — a bountiful release for all
Firefox 70 is released today, and includes great new features such as secure password generation with Lockwise and the new Firefox Privacy Protection Report; you can read the full details in the Firefox 70 Release Notes. Amazing user features and protections ... moreFriday, 4 October, 2019 UTC
Why is CSS so Weird?
CSS is the design language of the web — one of three core web languages — but it also seems to be the most contentious and often perplexing. It’s too easy and too hard, too fragile and too resilient. Love it or hate it, CSS is weird : not quite markup, ... moreFriday, 27 September, 2019 UTC
Why is CSS so Weird?
CSS is the design language of the web — one of three core web languages — but it also seems to be the most contentious and often perplexing. It’s too easy and too hard, too fragile and too resilient. Love it or hate it, CSS is weird : not quite markup, ... moreTuesday, 17 September, 2019 UTC
Moving Firefox to a faster 4-week release cycle
Editor’s Note: Wednesday, 10:40am PT. We’ve updated this post with the following correction: The SeaMonkey Project consumes Firefox releases, not SpiderMonkey, which is Firefox’s JavaScript engine. Thanks to an astute reader for noticing. Overview We ... moreTuesday, 10 September, 2019 UTC
Caniuse and MDN compatibility data collaboration
Web developers spend a good amount of time making web compatibility decisions. Deciding whether or not to use a web platform feature often depends on its availability in web browsers. A brief history of compatibility data More than 10 years ago, @fyrd ... moreFriday, 6 September, 2019 UTC
Debugging TypeScript in Firefox DevTools
Firefox Debugger has evolved into a fast and reliable tool chain over the past several months and it’s now supporting many cool features. Though primarily used to debug JavaScript, did you know that you can also use Firefox to debug your TypeScript applications? ... moreWednesday, 4 September, 2019 UTC
Firefox 69 — a tale of Resize Observer, microtasks, CSS, and DevTools
For our latest excellent adventure, we’ve gone and cooked up a new Firefox release. Version 69 features a number of nice new additions including JavaScript public instance fields, the Resize Observer and Microtask APIs, CSS logical overflow properties ... moreFriday, 30 August, 2019 UTC
The Baseline Interpreter: a faster JS interpreter in Firefox 70
Introduction Modern web applications load and execute a lot more JavaScript code than they did just a few years ago. While JIT (just-in-time) compilers have been very successful in making JavaScript performant, we needed a better solution to deal with ... moreWednesday, 21 August, 2019 UTC
WebAssembly Interface Types: Interoperate with All the Things!
People are excited about running WebAssembly outside the browser. That excitement isn’t just about WebAssembly running in its own standalone runtime. People are also excited about running WebAssembly from languages like Python, Ruby, and Rust. Why would ... moreTuesday, 16 July, 2019 UTC
MDN’s First Annual Web Developer & Designer Survey
Today we are launching the first edition of the MDN Developer & Designer Needs Survey. Web developers and designers, we need to hear from you! This is your opportunity to tell us about your needs and frustrations with the web. In fact, your participation ... moreTuesday, 9 July, 2019 UTC
Firefox 68: BigInts, Contrast Checks, and the QuantumBar
Firefox 68 is available today, featuring support for big integers, whole-page contrast checks, and a completely new implementation of a core Firefox feature: the URL bar. These are just the highlights. For complete information, see: Firefox 68 Release ... moreThursday, 27 June, 2019 UTC
GeckoView in 2019
Last September we wrote about using GeckoView to bring Firefox’s rendering engine to Android as a reusable library. By decoupling the Gecko engine from the Firefox application, we’ve created a newer, faster, and more maintainable way to create Android ... moreWednesday, 26 June, 2019 UTC
How accessibility trees inform assistive tech
The web is accessible by default. It was designed with features to make accessibility possible, and 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 ... moreTuesday, 18 June, 2019 UTC
CSS Scroll Snap Updated in Firefox 68
When Firefox 68 goes to general release next month, it will ship with an updated CSS Scroll Snap specification. This means that Firefox will support the same version of the specification as Chrome and Safari. Scroll snapping will work in the same way ... moreWednesday, 5 June, 2019 UTC
Indicating focus to improve accessibility
It’s a common, but fairly easy-to-fix accessibility issue: lack of indicating focus. In this post I will explain what we mean by focus and show you how focus outlines make your site easier to use. What is focus? Focus indicators make the difference between ... moreWednesday, 29 May, 2019 UTC
JavaScript and evidence-based language design
Author’s note: Hi, I’m an engineer at Mozilla working on the Firefox DevTools server. I’m also a TC39 representative. This post focuses on some of the experiments I am trying out at the TC39, the standards body that manages the JavaScript specification. ... moreTuesday, 21 May, 2019 UTC
Firefox 67: Dark Mode CSS, WebRender, and more
Firefox 67 is available today, bringing a faster and better JavaScript debugger, support for CSS prefers-color-scheme media queries, and the initial debut of WebRender in stable Firefox. These are just the highlights. For complete information, see: Firefox ... moreThursday, 16 May, 2019 UTC
Faster smarter JavaScript debugging in Firefox DevTools
Script debugging is one of the most powerful and complex productivity features in the web developer toolbox. Done right, it empowers developers to fix bugs quickly and efficiently. So the question for us, the Firefox DevTools team, has been, are the ... moreWednesday, 1 May, 2019 UTC
Owning it: browser compatibility data and open source governance
What does it mean to “own” an open-source project? With the browser-compat-data project (“BCD”), the MDN (Mozilla Developer Network) community and I recently had the opportunity to find out. In 2017, the MDN Web Docs team invited me to work on what was ... moreWednesday, 17 April, 2019 UTC
Fluent 1.0: a localization system for natural-sounding translations
Fluent is a family of localization specifications, implementations and good practices developed by Mozilla. It is currently used in Firefox. With Fluent, translators can create expressive translations that sound great in their language. Today we’re announcing ... moreTuesday, 16 April, 2019 UTC
