Firefox 18.0 Beta 5 Now Available for Download

Firefox 18.0 Beta 5 is now available for download from Mozilla download center. Firefox 18.0 focuses on two primary features: A panel-based download manager, and IonMonkey, Mozilla's next generation JavaScript engine. Firefox 18.0 might use some functions of WebRTC.

Note: Firefox 18.0 Final is scheduled to be released on January 6, 2013.

Download Firefox 18.0 Beta 5:
Firefox 18.0 Beta 5 available for download at website listed below:

• Download Firefox 18.0 Beta
• Download Firefox 18.0 Beta 5 for Windows (32-bit)

Firefox 18.0 Beta on Windows 8 Enterprise

Note: Please do NOT use this Firefox Beta release on production machines. A Firefox Beta release should be considered for evaluation and testing purposes.

What's new in Firefox 18.0 Beta?
Firefox 18.0 Beta has the following changes:

New:

• IonMonkey: IonMonkey is a new JavaScript JIT compiler that provides a more efficient way for Firefox to process JavaScript.
• Support for Retina Display on Mac OS X 10.7 and up.
• Preliminary support for WebRTC.

Changed:

• Experience better image quality with our new HTML scaling algorithm.
• Performance improvements around tab switching.

Developer:

• CSS3 Flexbox implemented.
• Support for new DOM property window.devicePixelRatio.
• DOM Tree Live Preview added to inspect tool.
• Support for @supports added.
• Improvement in startup time through smart handling of signed extension certificates.

HTML5:

• Support for W3C touch events impemented, taking the place of MozTouch events.

Fixed:

• Disable insecure content loading on HTTPS pages.

Sources:

• Firefox 18.0 Beta Release Notes.
• Wikipedia