Which Firefox version are you using? The system details list states a Firefox 3.6.28 version, but if you've updated then you should have a Firefox 11 version. Do you see that message on the www.google.com/firefox site? The www.google.com/firefox site was used in Firefox 3 versions. Current Firefox 4+ versions no longer use that Google website as the home page, but use the build-in about:home page as the home page. Google no longer seems to maintain the www.google.com/firefox site and assumes that you use an older Firefox version if you still visit that site and warns you that you use an older Firefox version and suggests to update. You can ignore that message if you run the latest Firefox version as reported in the "Help > About" or "Firefox > About" window (Firefox is up to date). You can use another page as the home page like about:home or www.google.com or www.google.com/ig (iGoogle).