Comment 111 for bug 60995

(In reply to comment #63)
> Reversibility is definitely good. I think a prompt might be a better idea,
> though. "You have unsaved changes on this page. Are you sure you want to
> navigate away from it?" Then this would apply to any action that navigates
> away from a page, including Backspace, Ctrl+W, closing Firefox, and so on.
> This is already the case in Google apps (programmed in javascript?), but should
> be the default behavior for any page with an edited form.
>
That is definitely the best solution.