checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
configure: Determining mozilla/firefox packages to build against
checking for MOZPLUG... no
configure: WARNING: mozilla-plugin not found
checking for MOZPLUG... no
configure: WARNING: firefox-plugin not found
checking for MOZPLUG... no
configure: WARNING: seamonkey-plugin not found
checking for MOZPLUG... no
configure: WARNING: xulrunner-plugin not found
checking for MOZPLUG... no
configure: WARNING: iceape-plugin not found
configure: error: Unable to find mozilla or firefox development files
===> Error: please fix the error and try again