The JavaScript Specification has a New License – Mozilla Hacks - the Web developer blog
Ecma International recently approved the 2022 standard of ECMAScript. There is something new in this edition that hasn’t been part of prior editions, but this isn’t a new programming feature. In March of this year, Ecma International accepted a proposal led by Mozilla for a new alternative license. On June 22nd, the first requests to adopt this license were granted to TC39 and applied to the follo
New in Firefox 78: DevTools improvements, new regex engine, and abundant web platform updates – Mozilla Hacks - the Web developer blog
New in Firefox 78: DevTools improvements, new regex engine, and abundant web platform updates A new stable Firefox version rolls out today, providing new features for web developers. A new regex engine, updates to the ECMAScript Intl API, new CSS selectors, enhanced support for WebAssembly, and many improvements to the Firefox Developer Tools await you. This blog post provides merely a set of high
Firefox’s New WebSocket Inspector – Mozilla Hacks - the Web developer blog
The Firefox DevTools team and our contributors were hard at work over the summer, getting Firefox 70 jam-packed with improvements. We are especially excited about our new WebSocket inspection feature, because you told us in feedback how important it would be for your daily work. The WebSocket inspector will be released in Firefox 71, but is ready for you to use in Firefox Developer Edition now. To
Moving Firefox to a faster 4-week release cycle – Mozilla Hacks - the Web developer blog
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 typically ship a major Firefox browser (Desktop and Android) release every 6 to 8 weeks. Building and releasing a browser is complicated and involves
Debugging TypeScript in Firefox DevTools – Mozilla Hacks - the Web developer blog
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? Before we jump into real world examples, note that today’s browsers can’t run TypeScript code directly. It’s important to understand that
Debugging WebAssembly Outside of the Browser – Mozilla Hacks - the Web developer blog
WebAssembly has begun to establish itself outside of the browser via dedicated runtimes like Mozilla’s Wasmtime and Fastly’s Lucet. While the promise of a new, universal format for programs is appealing, it also comes with new challenges. For instance, how do you debug .wasm binaries? At Mozilla, we’ve been prototyping ways to enable source-level debugging of .wasm files using traditional tools li
WebAssembly Interface Types: Interoperate with All the Things! – Mozilla Hacks - the Web developer blog
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 you want to do that? A few reasons: Make “native” modules less complicated Runtimes
WebAssembly's post-MVP future: A cartoon skill tree - Mozilla Hacks - the Web developer blog
People have a misconception about WebAssembly. They think that the WebAssembly that landed in browsers back in 2017—which we called the minimum viable product (or MVP) of WebAssembly—is the final version of WebAssembly. I can understand where that misconception comes from. The WebAssembly community group is really committed to backwards compatibility. This means that the WebAssembly that you creat
How to Write CSS That Works in Every Browser, Even the Old Ones – Mozilla Hacks - the Web developer blog
How to Write CSS That Works in Every Browser, Even the Old Ones Let me walk you through how exactly to write CSS that works in every browser at the same time, even the old ones. By using these techniques, you can start using the latest and greatest CSS today — including CSS Grid — without leaving any of your users behind. Along the way, you’ll learn the advanced features of Can I Use, how to do ve
Firefox 58: The Quantum Era Continues – Mozilla Hacks - the Web developer blog
2017 was a big year for Mozilla, culminating in the release of Firefox Quantum, a massive multi-year retooling of the browser focused on speed, and laying the groundwork for the years to come. In 2018, we’ll build on that incredible foundation, and in that spirit our next several releases will continue to bear the Quantum moniker. Let’s take a look at some of the new goodies that Firefox 58 brings
Using the new theming API in Firefox – Mozilla Hacks - the Web developer blog
From powerful extensions like Stratiform or FT Deep Dark to simple lightweight themes, theming has been quite popular within Firefox. Now that Firefox Quantum (57) has launched with many performance improvements and a sparkling new interface, we want to bridge the gap with a new theming API that allows you to go beyond basic lightweight themes. Demo by John Gruen What can you theme? Before the lau
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Compiler Compiler: A Twitch series about working on a JavaScript engine – Mozilla Hacks - the Web developer blog