Firefox has a problem by which you can't assign it a shortcut to zoom the window.
As it has another menu item named "Zoom" which actually has subitems for zoom in, etc. you can't map the shortcut by menu item name, because that item takes the stroke instead of the window zoom.
I tried to edit Firefox's resources, to see if there was a .nib where I could rename the menu item to another thing so the shortcut would find the correct "zoom" item, but failed.
Does someone have a solution for this?
edit: I'm talking about MacOS's Zoom Window action equivalent to Windows' Maximize, and not about zooming the contents in or out.