Mozilla, a global, nonprofit organization dedicated to making the Web better, today released a new version of Mozilla Firefox for Windows, Mac, Linux and Android. The new version of Firefox comes on the heels of the wildly successful release of Firefox 4, which had more than 200 million downloads on Windows, Mac and Linux and millions of downloads in the Android Market.

Mozilla’s shift to a rapid release development cycle delivers cutting edge Firefox features, performance enhancements, security updates and stability improvements to users faster.

The latest version of Firefox includes more than 1,000 improvements and performance enhancements that make it easier to discover and use all of the innovative features in Firefox. This release adds support for more modern Web technologies that make it easier for developers to build amazing Firefox Add-ons, Web applications and websites.

Firefox for Android includes the Do Not Track privacy feature in this release, making Firefox the first browser to support Do Not Track on multiple platforms. Mozilla created Do Not Track to give users more control over the way their browsing behavior is tracked and used on the Web. The feature, which lets users tell websites that they wish to opt-out of online behavioral tracking, is now easier to find in Firefox Preferences.

Firefox offers users complete control over the look and functionality of their Web browser with a gallery of hundreds of thousands of add-ons. About 85% of Firefox 4 users have an add-on installed to customize the look, features and functionality of their Firefox.

Mozilla has a rich set of resources that make it easier for Web developers to build compelling Firefox Add-ons using HTML, JavaScript and CSS. The new Firefox Add-on SDK for Windows, Mac and Linux enables local development of add-ons, while the Firefox Add-on Builder Beta provides a hosted Web-based build environment. Developers can build Firefox Add-ons for all platforms that install and update without requiring a browser restart or interrupting the Web browsing experience.

Firefox for Windows, Mac and Linux now supports the CSS Animations standard to enable developers to build more amazing Web applications and websites. Mozilla Hacks has a tutorial on CSS Animations and a comprehensive blog post explaining what developers can create with Firefox.

To get the latest version of Firefox for Windows, Mac or Linux click on “check for update” under the “About Firefox” menu or download the Firefox Aurora and Beta channels here. Visit this page to get the latest version of Firefox on your Android device or to join the beta. Users with Firefox for Android installed will receive a notification to update to the latest version.

For more information:

FAQ: Firefox for Windows, Mac and Linux / Firefox for Android

Long, technical release notes: Firefox for Windows, Mac and Linux / Firefox for Android