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Firefox Browser, also known as Mozilla Firefox or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation.Firefox uses the Gecko layout engine to render web pages, which implements current and anticipated web standards. In 2017, Firefox began incorporating new technology under the code name Quantum to promote. The browser made for developers. All the latest developer tools in beta, plus experimental features like the Multi-line Console Editor and WebSocket Inspector. A separate profile and path so you can easily run it alongside Release or Beta Firefox. Preferences tailored for web developers: Browser and remote debugging are enabled by default, as are the dark theme and developer toolbar button.

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Hacks Blog

  • Pyodide Spin Out and 0.17 Release

    We are happy to announce that Pyodide has become an independent and community-driven project. We are also pleased to announce the 0.17 release for Pyodide with many new features and improvements. Pyodide consists of the CPython 3.8 interpreter compiled to WebAssembly which allows Python to run in the browser.The post Pyodide Spin Out and 0.17 Release appeared first on Mozilla Hacks - the Web developer blog.

  • Never too late for Firefox 88

    April is upon us, and we have a most timely release for you — Firefox 88. In this release you will find a bunch of nice CSS additions including :user-valid and :user-invalid support and image-set() support, support for regular expression match indices, removal of FTP protocol support for enhanced security, and more! This blog post […]The post Never too late for Firefox 88 appeared first on Mozilla Hacks - the Web developer blog.

  • QUIC and HTTP/3 Support now in Firefox Nightly and Beta

    Support for QUIC and HTTP/3 is now enabled by default in Firefox Nightly and Firefox Beta and we are planning to start a rollout on the release in Firefox Stable Release 88. HTTP/3 will be available by default by the end of May.The post QUIC and HTTP/3 Support now in Firefox Nightly and Beta appeared first on Mozilla Hacks - the Web developer blog.

  • Eliminating Data Races in Firefox – A Technical Report

    We successfully deployed ThreadSanitizer in the Firefox project to eliminate data races in our remaining C/C++ components. In the process, we found several impactful bugs and can safely say that data races are often underestimated in terms of their impact on program correctness. We recommend that all multithreaded C/C++ projects adopt the ThreadSanitizer tool to enhance code quality.The post Eliminating Data Races in Firefox – A Technical Report appeared first on Mozilla Hacks - the Web developer blog.

  • A web testing deep dive: The MDN web testing report

    For the last couple of years, we've run the MDN Web Developer Needs Assessment (DNA) Report, which aims to highlight the key issues faced by developers building web sites and applications. This has proved to be an invaluable source of data for browser vendors and other organizations to prioritize improvements to the web platform. This year we did a deep dive into web testing, and we are delighted to be able to announce the publication of this follow-on work, available at our insights.developer.mozilla.org site along with our other Web DNA publications.The post A web testing deep dive: The MDN web testing report appeared first on Mozilla Hacks - the Web developer blog.

All-New for 2021: Check out our Web Testing Report, an informative deeper dive into issues around web testing. The 2020 and 2019 Web DNA reports are still available — providing an overview of the key pain points and frustrations for developers working on the web. Mozilla Hacks is written for web developers, designers and everyone who builds for the Web. Hacks is produced by Mozilla's Developer Relations team and features hundreds of posts from Mozilla.

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