I typically launch Firefox from my flash drive (U3 launchpad). My version of Firefox (3) was having problems staying on and launching. I tried updating to the latest version. My version of Firefox (3) would not or was not able to update to the latest version 4. I deleted Firefox from my U3 launch pad and tried downloading it again. U3 Launchpad only has version 2 of Firefox available for downloading. I downloaded it in hopes of updating it to the latest version. During the update/download the program failed to complete the download, and after trying to load it again it failed to log on to the download center. I'm at my wits end!!! How do I get Firefox 4 on to my U3 launchpad??