See the "Firefox won't start - find solutions" article.

I get this too. I have tried uninstalling/reinstalling quite a few times, tried both standard and custom install (unchecking the add quick-launch option)

After I have installed Firefox (version 3.6.12) and launched it from the installer app, a little window appears with the title "Import Wizard", but it is less than 2 lines high, with a black background, and the only option is for me to hit the close button.

From that point, every time I try to run it, absolutely nothing happens. I have watched the Task manager to see if the firefox.exe process starts but I don't see anything there. Probably dieing too quickly.

I tried running it under safe-mode, but still get nothing.

I am not sure if other people see the little broken Import Wizard dialog but that's what I get.

Hope this added information helps.

Thanks