Featured Articles
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Creating the future of mobile with Firefox OS – resources, docs and more!
Just under a month ago I wrote a personal post about my thoughts on Firefox OS and why I think there is something ‘magical’ about what it stands for and the possibilities it brings to the table. This post is a follow-up that aims to cover much of the same ground but with extra detail […]
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Web Push Arrives in Firefox 44
Updated, 2016-02-20: The Push service now requires an explicit “TTL” header on requests to an endpoint. The article has been updated to reflect this. More details on the Mozilla Services Blog. Have you ever wished that a website could notify you when something important happened, even if you didn’t have the site open? Maybe you’ve […]
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Inside a super fast CSS engine: Quantum CSS (aka Stylo)
Project Quantum is a major rewrite of Firefox’s internals to make Firefox fast. We’re swapping in parts from our experimental browser, Servo, and making massive improvements to other parts of the engine. The first major component from Servo—a new CSS engine called Quantum CSS (previously known as Stylo)—is now available for testing in our Nightly version. It brings together state-of-the-art innovations from four different browsers to create a new super CSS engine.
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Firefox 56: Last Stop before Quantum
Here at Mozilla, we’re extremely excited about next month’s release of Firefox Quantum, with massive speed improvements, a brand new UI, and many Developer Tools upgrades -- available now in Developer Edition. But last week's general release of Firefox 56 features good news for developers now - including "headless mode" across all OSes, our modern new debugger, and much more.
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Box model highlighter, Web Console improvements, Firefox OS HUD + more – Firefox Developer Tools Episode 30
Firefox 30 was just uplifted to the Aurora release channel, so let’s take a look at the most important DevTools changes in this release. Inspector One of our most requested features has been to highlight box model regions of elements on the page. We are happy to report that this feature has landed in Firefox […]
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Firefox Developer Tools: Episode 27 – Edit as HTML, Codemirror & more
Firefox 27 was just uplifted to the Aurora release channel which means we are back to report on new features in Firefox Developer Tools. Below are just some of the new features, you can also take a look at all bugs resolved in DevTools for this release). JS Debugger: Break on DOM Events You can […]
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Firefox 4: OpenType font feature support
When @font-face support was introduced in Firefox 3.5, web authors were suddenly given a way of dramatically enhancing the typography used on their sites. With all major browsers slated to soon support WOFF fonts offered by many font vendors, the range of fonts available on the web is far wider than it was just two […]
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Introducing Aurora 11 with tons of new features and improvements
We have now released Aurora 11, soon to become Firefox 11, and wanted to cover all the the things we have improved in this version!
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Firebug 1.9 New Features
Firebug 1.9 has been released and as usual I would like to get this opportunity to present some new features introduced in this version. First of all, check out the following compatibility table: Firefox 4.0 with Firebug 1.7.3 Firefox 5.0 – 11.0 with Firebug 1.9 Firefox 12.0 (nightly) with Firebug 1.10 Firebug 1.10 alpha 1 […]
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Firefox OS Simulator 3.0 released
About 6 weeks ago, we wrote about the preview of Firefox OS Simulator 3.0 and now we’re happy to release it! New features In our preview coverage, we listed the new features for this version: Push to Device Rotation simulation Basic geolocation API simulation Manifest validation Stability fixes for installation and updates to apps Newer […]