There’s a little tiny icon in the upper right corner of the Firefox window, just below the Minimize / Maximize / Close buttons, that is supposed to alert you when an upgrade is available. The most current version is 1.0.3, and the little icon has been visible now for a couple of days, with no additional warning of any kind. In my opinion, the Firefox alert icon is way too subtle. How many people had Firefox 1.0 installed on their computer by a friend or family member over the holidays and don’t realize there have been three critical updates since then?