Mozilla has updated the Beta Channel with Firefox 6.0. This is a developer’s preview and is NOT intended for everyday use. What’s New in Firefox 6 Beta: The address bar now highlights the domain of the website you’re visiting Streamlined the look of the site identity block Added support for the latest draft version of WebSockets with a prefixed API Added support for EventSource / server-sent events Added support for window.matchMedia Added Scratchpad, an interactive JavaScript prototyping environment Added a new Web Developer menu item and moved development-related items into it Improved usability of the Web Console Improved the discoverability…