Firefox Aurora, the pre-Beta build of Mozilla is now available publicly for download. The latest release includes some novel features and enhancements. It has a fresh Layout view, allowing developers to view how the margins, border and padding are set in one view.

Its prime highlights are:

• Preliminary native PDF support
• Support for SPDY networking protocol v3
• Improvements around memory leaks caused by some add-ons
• JavaScript debugger integrated into developer tools
• New layout view added to Inspector
• The CSS word-break property has been implemented
• Latest responsive design tool enables web developers to switch between desktop and mobile views of sites
• Native support for the Opus audio codec added
• Support for the media attribute with source element
• Support for the played attribute with audio and video elements

Firefox Aurora enables users and developers to preview features of the soon to be released version of Firefox browser.