Changed image for close button on addon bar
Changed image for close button on addon bar

synapsos/firefox-gnome,lbrfabio/firefox-gnome-flat,gnome-integration-team/firefox-gnome,synapsos/firefox-gnome,gnome-integration-team/firefox-gnome,gnome-integration-team/firefox-gnome,synapsos/firefox-gnome,lbrfabio/firefox-gnome-flat,gnome-integration-team/firefox-gnome,lbrfabio/firefox-gnome-flat,lbrfabio/firefox-gnome-flat,synapsos/firefox-gnome