Comment 127 for bug 60995

I can buy the argument that whatever you do someone will be unhappy with it. But still, backspace has meant go back in firefox for years and also in most other browsers including the dominant one on the market. So changing it now in firefox makes no sense. People who come from IE will usually not try to change keybindings, they will just be anoyed that firefox doesn't behave the way they are used to.

I haven't read the gnome HIG but I know that the gnome application with the most firefox like UI, nautilus in browser mode, takes you back one step in the filesystem when you press backspace. So for consistency with nautilus backspace should go back in firefox also.

About how many people that are disappointed by the change:
http://www.google.com/search?q=firefox2+backspace+linux