Firefox 6 moved from the Nightly to the Aurora channel on May 24th. The Aurora build is a developer’s preview which will allow testers and extension developers to see and work with the new features in Firefox 6. All new features have landed, but features that are not fully functional and stable by the July 7th Beta merge will be removed. What’s new in Firefox 6? mostly ‘under-the-hood’ improvements and these key features: Windows 64-Bit Support (apparently this did not make the cut in Firefox 5) Improvements to the about:memory page New experimental privacy feature called the Data Management Window…