Bringing Virtual Reality to the web platform

Using WebVR, developers, designers and artists can share VR experiences on the web.

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Firefox Quantum for Developers is here (and it’s fast!)

The new Firefox Developer Edition has a new, blazingly fast CSS engine built in Rust. Get it with innovative features like CSS Grid Layout panel and framework debugging.

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Using the Web to change the game

With powerful Web technologies, pioneered by Mozilla, developers are pushing games to a new level.

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Building the Web of Things

We’re working to create an open, Web of Things framework of software and services that can bridge the communication gap between connected devices.

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Building a browser that gets you

The next generation of Web discovery is a browser that is more intuitive, useful and in tune with you.

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Inventing a safer programming language

Sponsored by Mozilla, Rust allows browsers, systems and more to run much faster and more safely.

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Read the latest from Mozilla’s technology blogs.

  • 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, not quite programming in the common (imperative) sense, and nothing like the design programs we use for print. How did we get here?

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  • Video Shorts from Mozilla Developer


    Today we’re launching a new video channel, with a selection of shorts to kick things off. Get started with an intro to Dark Mode on the web, by Deja Hodge. Then, Jen Simmons shows us how to access a handy third-panel in the Firefox Developer Tools. Miriam Suzanne has a video all about the ::marker pseudo-element and list counters. No matter your experience level or job description, we’re all working together towards the future health of the web, and Mozilla is here to help.

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  • WebHint in Firefox DevTools: Improve Compatibility, Accessibility and more


    Creating experiences that look and work great across different browsers is one of the biggest challenges on the web. It can also be the most rewarding part, as it gets your app to as many users as possible. Testing legacy browsers late in the development process can break a feature that you spent hours on, even requiring rewrites to fix. What if the tools in your primary development browser could warn you sooner? With Webhint in Firefox DevTools, we can do exactly that, and more.

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