Firefox Articles
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privacy-related changes coming to CSS :visited
For more information about this, have a look at David Baron’s post, the bug and the post on the security blog. For many years the CSS :visited selector has been a vector for querying a user’s history. It’s not particularly dangerous by itself, but when it’s combined with <a href="https://developer.mozilla.org/en/DOM/window.getComputedStyle">getComputedStyle()</a> in JavaScript it means that […]
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a quick note on JavaScript engine components
There have been a bunch of posts about the JägerMonkey (JM) post that we made the other day, some of which get things subtly wrong about the pieces of technology that are being used as part of Mozilla’s JM work. So here’s the super-quick overview of what we’re using, what the various parts do and […]
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Mozilla developer preview (Gecko 1.9.3a2) now available
We’ve posted a new release of our Mozilla developer preview series as a way to test new features that we’re putting into the Mozilla platform. These features may or may not make it into a future Firefox release, either for desktops or for mobile phones. But that’s why we do these releases – to get […]
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improving JavaScript performance with JägerMonkey
In August 2008, Mozilla introduced TraceMonkey. The new engine, which we shipped in Firefox 3.5, heralded a new era of performance to build the next generation of web browsers and web applications. Just after the introduction of our new engine Google introduced V8 with Chrome. Apple also introduced their own engine to use in Safari, […]
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Firefox: 46 features you might not know about
Ever since the release of Firefox 3 we’ve been doing a lot of work to add new capabilities for web developers. We thought it would be worth it to make a post that actually listed all of the features that we knew about and people might not know about. This contains everything that we’ve done […]
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Mozilla developer preview (Gecko 1.9.3a1) available for download
Editor’s note: Today, Mozilla released a preview of the Gecko 1.9.3 platform for developers and testers. Check out the Mozilla Developer News announcement reposted below. A Mozilla Developer Preview of improvements in the Gecko layout engine is now available for download. This is a pre-release version of the Gecko 1.9.3 platform, which forms the core […]
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Firefox 3.6 feedback
Firefox 3.6 was released on Jan 21st and has already been downloaded more than 35 million times! It features a faster JavaScript engine, faster DOM performance and a bunch of new HTML5 features. Highlights for web developers include support for the WOFF font format, new CSS features like gradients and multiple backgrounds, drag and drop, […]
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an HTML5 offline image editor and uploader application
Many web applications use image uploaders: image hosting websites, blog publishing applications, social networks, among many others. Such uploaders have limitations: you can’t upload more than one file at a time and you can’t edit the image before sending it. A plugin is the usual workaround for uploading more than one image, and image modifications […]
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ClassList in Firefox 3.6
This article was writt by Anthony Ricaud, French OpenWeb enthusiast. Why you need classList A dynamic web application usually needs visual feedback from its inner mechanism or needs to display different visual elements based on users’ actions. To change the user interface easily, you can add/remove/edit elements through the DOM API (document.createElement, div.removeChild, elt.style.color, …) […]
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industry support for WOFF and Firefox 3.6
Today we announced the release of Firefox 3.6 and users are starting to upgrade. One of the more important features we included for developers was support for a new font standard called WOFF. WOFF has received wide support from the type community and we’re starting to see the results of that. There are a couple […]
