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  • Moving Firefox to a faster 4-week release cycle

    Building and releasing a browser is complicated and involves many players. To optimize the process, and make it more reliable for all users, over the years we’ve developed a phased release strategy that includes ‘pre-release’ channels: Firefox Nightly, Beta, and Developer Edition. Starting Q1 2020, we're making a change. We ...

  • Caniuse and MDN compatibility data collaboration

    Today we’re announcing the integration of MDN’s compat data into the caniuse website. Together, we’re bringing even more web compatibility information into the hands of web developers. The post Caniuse and MDN compatibility data collaboration appeared first on Mozilla Hacks - the Web developer blog.

  • 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 it's primarily used to debug JavaScript, did you know that you can also use Firefox to debug your TypeScript applications? Jan 'Honza' Odvarko walks through some ...

  • Debugging WebAssembly Outside of the Browser

    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. At Mozilla, we’ve been prototyping ways to enable source-level debugging of .wasm files ...

  • 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 great new additions including JavaScript public instance fields, the Resize Observer and Microtask APIs, CSS logical overflow properties (e.g. overflow-block) and @supports for selectors. The post Firefox 69 — a ...

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