This is actually a firefox bug. We just need to drop the "unset UBUNTU_MENUPROXY" bit from the launcher script. That made it's way in from the firefox-4.0 nightly source (which needs that because the binary name doesn't match the blacklist in appmenu-gtk).
This is actually a firefox bug. We just need to drop the "unset UBUNTU_MENUPROXY" bit from the launcher script. That made it's way in from the firefox-4.0 nightly source (which needs that because the binary name doesn't match the blacklist in appmenu-gtk).