Comment 121 for bug 60995

(In reply to comment #68)
> In my opinion, the "accidentally press the back button and lose form data"
> argument should carry very little weight for this issue. There are just too
> many prerequisites to trigger it:

Exactly. And turning off the backspace button doesn't even fix the fundamental problem anyway. This isn't the only way to lose form data because of navigation. Disabling the backspace button is just a band-aid. The real solution would be to prevent navigation until the user has confirmed that they want to discard what they have filled out, just like when you are composing a gmail.