Firefox Articles
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Getting snappy – performance optimizations in Firefox 13
Back in the fall of 2011, we took a targeted look at Firefox responsiveness issues. We identified a number of short term projects that together could achieve significant responsiveness improvements in day-to-day Firefox usage. Project Snappy kicked off at the end of the year with the goal of improving Firefox responsiveness. Although Snappy first contributed […]
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Firefox 4 Beta 2 is here – Welcome CSS3 transitions
As we have explained before, Mozilla is now making more frequent updates to our beta program. So here it is, Firefox Beta 2 has just been released, 3 weeks after Beta 1. Firefox 4 Beta 1 already brought a large amount of new features (see the Beta 1 feature list). So what’s new for web […]
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new device API for Firefox 3.6: orientation
One new feature that we’re including as part of Firefox 3.6 is support for web pages to access machine orientation information if it’s available. As you can see from the demo above you can use it to figure out if the machine is moving and what direction it’s facing. Using the API is very simple. […]
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what does tracemonkey feel like?
One of our goals with Firefox 3.5 is to help upgrade the web. Over the lifecycle of this release we’ve invested heavily in developer features. One of the features that we’ve invested in is TraceMonkey – a tracing interpreter that turns commonly-run JavaScript code into machine code so that it can run at near-native speeds. […]
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Firefox Quantum Developer Edition: the fastest Firefox ever with Photon UI and better tooling
Firefox Quantum is now available in Developer Edition, and this Firefox is fast. Today’s release is a major milestone towards our next-generation browser, and includes Quantum CSS, Firefox's new CSS rendering engine; Photon, a major UI refresh; and lots more speed and features you've requested.
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Reintroducing the Firefox Developer Tools, part 1: the Web Console and the JavaScript Debugger
This is part one, out of 5, focusing on the built-in Developer Tools in Firefox, their features and where we are now with them. The intention is to show you all the possibilities available, the progress and what we are aiming for. Firefox 4 saw the launch of the Web Console, the first of the […]
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Firefox 3.6 is here!
Firefox 3.6 has some cool consumer facing features like Personas and a better Plug-in Updater, but developers have a lot to be excited about too. Developers will appreciate the increased stability, especially the work done to prevent crashes with third party software. There are also enhancements like improved JavaScript performance and optimizations to speed up […]
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css gradients in Firefox 3.6
Firefox 3.6 includes many CSS improvements. In this post we’re going to show you how to use CSS gradients. If you are running the latest beta of Firefox 3.6, you should check out our interactive demo and take a look at the corresponding code. Use the radio buttons to switch different style options on or […]
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Firefox 4 beta 1 is here – what's in it for web developers?
Today we’re releasing the first beta-quality version of Firefox 4, which starts us down the path to a final release of Firefox 4. We’re handling this beta differently than we’ve done other releases. In previous betas we’ve made milestone-like releases. For this beta we’ll be making more frequent updates during the beta program. So if […]
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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 […]