Using MozBackup 1.4.5.
I pressed the back button after selecting the profile,
but then was not able to use the next button anymore,
because it was greyed out.
And for all screens that I went back (except the first)
had the next button greyed out.
Logged In: YES
user_id=980800
Originator: NO
This isn't bug. After using back button you need to select application which you want to backup.