* (New in this update) A change to how third-party software integrates with Firefox to increase stability.
* (New in this update) The ability to run scripts asynchronously to speed up page load times.
* A mechanism to prevent incompatible software from crashing Firefox.
* Users can now change their browser’s appearance with a single click, with built in support for Personas.
* Firefox 3.6 will alert users about out of date plugins to keep them safe.
* Open, native video can now be displayed full screen, and supports poster frames.
* Support for the WOFF font format.
* Improved JavaScript performance, overall browser responsiveness and startup time.
* Support for new CSS, DOM and HTML5 web technologies.

• Firefox 3.6 Beta 3 - Windows (8,0 MB)
• Firefox 3.6 Beta 3 - Linux (9,7 MB)
• Firefox 3.6 Beta 3 - Mac OS X (18,5 MB)

• Was ist eine Beta-Version?