F7: the backspace key does not work in browsers.

[Clodoaldo]

The normal behavior of the backspace in browsers is to go back to the
last visited page.

I fresh installed F7-gnome and now in Firefox the backspace is acting
as the page-up key and in Epiphany it does nothing.

The backspace works as it should in the terminal and this same
keyboard was working correctly in FC6.

I already checked the Preferences -> Hardware -> Keyboard settings and
it is correct.

Any hints?

Regards, Clodoaldo Pinto Neto