Firefox Articles
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Firefox 3.6 Alpha 1 – web developer changes
As covered on the Mozilla Developer Center, Firefox 3.6 Alpha 1 is now available for download. And we’ve been busy since Firefox 3.5. Web developers will be interested in a number of features that are new in Firefox 3.6 Alpha 1: The TraceMonkey JavaScript engine has continued to get faster. We’ve made a huge number […]
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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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3D transforms in Firefox 3.5 – the isocube
This demo was created by Zachary Johnson, a Minneapolis, MN based web developer who has also authored a jQuery plugin for animated “3D” rotation. I’d like to show an example of a visual effect that can be accomplished using the new -moz-transform CSS transformation property that is available in the Firefox 3.5 browser. I was […]
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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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html5 video fallbacks with markup
In a previous post on this blog we talked about using JavaScript to create video elements on the fly. While that was a good use case for the Mozilla’s support site in this post we offer another set of methods that will likely find more use on the web. In fact you can see it […]
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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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WebSocket disabled in Firefox 4
Recent discoveries found that the protocol that Websocket works with is vulnerable to attacks. Adam Barth demonstrated some serious attacks against the protocol that could be used by an attacker to poison caches that sit in between the browser and the Internet. This is a serious threat to the Internet and Websocket and not a […]
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Final User Agent String for Firefox 4
With a title like that, you just know this is going to be fun. (No, seriously.) The user agent string is one of those wonderfully eclectic things, a balance of modernity and antiquity. Except mostly skewed toward antiquity. It’s grown, piece by piece, over the years; because everyone has their own special way of parsing […]
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CSS Variables in Firefox Nightly
As reported by Cameron McCormack, Firefox Nightly (version 29) now supports CSS variables. You can get a quick overview in this short screencast: You can define variables in a context with a var- prefix and then implement them using the var() instruction. For example: :root { var-companyblue: #369; var-lighterblue: powderblue; } h1 { color: var(companyblue); […]