pls note the method describe here is for use with a Unattended Installation of XP. It is not for updating Firefox. I just want to be clear on that. VAD if that is wat u want to do, u will hv to create your very own MSI or EXE hard work if u ask me. I informed simon that it would be easier for everyone, if we did all the hard work and all u hv to do is throw in your preferrences, settings, themes, extensions, and what not. Looks like u hv to do jdoe's method. GOOD LUCK!!! heheheh the email is from a developer from mozilla, totoymola knows the link to the forum that describes in some detail. but not as good as the email post here.