diff -r cd6dc43fd063 configure.ac
--- a/configure.ac	Fri Feb 22 13:36:53 2013 -0300
+++ b/configure.ac	Fri Feb 22 20:41:40 2013 -0300
@@ -400,9 +400,9 @@
   [with_npapi="no"])
 
 AS_IF([test "x$with_npapi" != "xno"],
-  [PKG_CHECK_MODULES([NPAPI], [firefox-plugin])
-   NPAPI_VERSION=`$PKG_CONFIG firefox-plugin --modversion`
-   AC_MSG_NOTICE([using firefox-plugin version $NPAPI_VERSION])])
+  [PKG_CHECK_MODULES([NPAPI], [mozilla-plugin])
+   NPAPI_VERSION=`$PKG_CONFIG mozilla-plugin --modversion`
+   AC_MSG_NOTICE([using mozilla-plugin version $NPAPI_VERSION])])
 
 AM_CONDITIONAL([HAVE_NPAPI], [test "x$with_npapi" = "xyes"])
 
diff -r cd6dc43fd063 plugin/Makefile.am.inc
--- a/plugin/Makefile.am.inc	Fri Feb 22 13:36:53 2013 -0300
+++ b/plugin/Makefile.am.inc	Fri Feb 22 20:41:40 2013 -0300
@@ -1,5 +1,5 @@
 lib_LTLIBRARIES += plugin/libzbarplugin.la
 plugin_libzbarplugin_la_SOURCES = \
    plugin/plugin.c
-plugin_libzbarplugin_la_CPPFLAGS = $(MOZILLA_CFLAGS) $(AM_CPPFLAGS)
-plugin_libzbarplugin_la_LDFLAGS = $(MOZILLA_LIBS) $(AM_LDFLAGS)
+plugin_libzbarplugin_la_CPPFLAGS = $(NPAPI_CFLAGS) $(AM_CPPFLAGS)
+plugin_libzbarplugin_la_LDFLAGS = $(NPAPI_LIBS) $(AM_LDFLAGS)