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 of Firefox Sync
• Reduced browser startup time when using Panorama
• More!

User who have installed Firefox 5 Beta (5.0b*) can update to Firefox 6 Beta via Help > About Firefox and follow the prompts. Otherwise you can obtain a fresh copy of Firefox 6 Beta here and select the Beta download link. The final release for Firefox 6 is scheduled for August 16th, 2011.