Developer Tools Articles
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Firefox 79: The safe return of shared memory, new tooling, and platform updates
Firefox 79 offers a new Promise method, more secure
target=_blanklinks, logical assignment operators, tooling improvements for better JavaScript debugging, and many other updates of interest to web developers. In addition, shared memory is back at last, with a safer implementation. -
Firefox 76: Audio worklets and other tricks
Firefox 76 delivers great new features for web platform support, such as Audio Worklets and
Intlimprovements, on the JavaScript side. Also, we’ve added a number of topnotch improvements to Firefox DevTools to make JavaScript debugging and development easier and quicker. -
Engineering code quality in the Firefox browser: A look at our tools and challenges
Here's an insider's look at Firefox's code quality toolchain that's been designed to manage the ongoing development and monthly releases of our desktop browser. This post explores the architecture, challenges, and ongoing evolution of the process for managing code quality and patches for dealing with 21 million lines of code.
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Security means more with Firefox 74
The release of Firefox 74 is focused on security enhancements: Feature Policy, the Cross-Origin-Resource-Policy header, and removal of TLS 1.0/1.1 support. We’ve also got some new CSS text property features, the JS optional chaining operator, and additional 2D canvas text metric features, along with the usual wealth of DevTools enhancements and bug fixes.
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Future-proofing Firefox’s JavaScript Debugger Implementation
Optimizing the integration of Firefox Developer Tools with the SpiderMonkey JavaScript engine has resulted in many benefits, including the new asynchronous call stack tracking now available in Firefox Developer Edition. In this post you can learn how that was done, down to detailed changes to memory management.
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Firefox 73 is upon us
Today we’ve released Firefox 73, with useful additions that include CSS and JavaScript updates, and numerous DevTools improvements. We’ve added to CSS logical properties, pushed performance forward in the Console and the Debugger, and improved the WebSocket inspector. Thanks to all for the ongoing DevTools feedback.
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Firefox 72 — our first song of 2020
Though we are moving to a more frequent four-week browser release cycle, the Firefox 72 release is feature-rich and full of goodies. It includes many requested DevTools' updates and improvements. We also introduce Shadow Parts and the CSS Motion Path, and useful new JavaScript features. Plus, Picture-in-picture for video is now enabled for Mac and Linux users too!
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Mozilla Hacks’ 10 most-read posts of 2019
Mozilla Hacks covered plenty of interesting territory in 2019. Our most popular posts introduced experiments and special projects, and described the evolution of groundbreaking platform technologies like WebAssembly and WASI. Mozilla WebThings continued to engage attention and adoption. And interest in Firefox releases and Firefox DevTools was stronger than ever. Read on.
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Debugging Variables With Watchpoints in Firefox 72
Have you ever wanted to know where properties on objects are read or set in your code, without having to manually add breakpoints or log statements? Watchpoints are a type of breakpoint that provide an answer to that question. They are new in the updated Debugger, available now in the Firefox 72 Developer Edition release.
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Firefox 71: A year-end arrival
Please welcome Firefox 71 to the stage! This time around, we have a plethora of new developer tools features including the web socket message inspector, console multi-line editor mode, log on events, and network panel full text search! And as if that wasn’t enough, there are important new web platform features available, like CSS subgrid, column-span, Promise.allSettled, and the Media Session API.
