Since release notes for the beta version are up, tentative early adopters can get an idea of what's on the menu. Changes include:Source: The Tech Report
Added support for CSS animations The Do-Not-Track header preference has been moved to increase discoverability Improved canvas, JavaScript, memory, and networking performance Improved standards support for HTML5, XHR, MathML, SMIL, and canvas Improved spell checking for some locales Improved desktop environment integration for Linux users WebGL content can no longer load cross-domain textures Background tabs have setTimeout and setInterval clamped to 1000ms to improve performance The Firefox development channel switcher introduced in previous Firefox Beta updates has been removed
Firefox 5 now online
Posted on Monday, June 20 2011 @ 22:18 CEST by Thomas De Maesschalck