Firefox 15.0 版本更新細節：
◦NEW - Preliminary native PDF support (Aurora/Beta only)
◦NEW - Support for SPDY networking protocol v3
◦NEW - WebGL enhancements, including compressed textures for better performance
◦CHANGED - Optimized memory usage for add-ons
◦DEVELOPER - JavaScript debugger integrated into developer tools
◦DEVELOPER - New layout view added to Inspector
◦DEVELOPER - The CSS word-break property has been implemented.
◦DEVELOPER - High precision event timer implemented
◦DEVELOPER - New responsive design tool allows web developers to switch between desktop and mobile views of sites
◦HTML5 - Native support for the Opus audio codec added
◦HTML5 - The <source> element now supports the media attribute
◦HTML5 - The <audio> and <video> elements now support the played attribute http://www.mediafire.com/?mxxeqygwtteeotq
