diff -urN liferea-1.4.20/configure.ac liferea-1.4.20.new/configure.ac
--- liferea-1.4.20/configure.ac	2008-09-28 12:14:41.000000000 +0200
+++ liferea-1.4.20.new/configure.ac	2008-10-06 16:37:24.000000000 +0200
@@ -184,11 +184,6 @@
       AC_SUBST([XULRUNNER_HOME])
       AC_SUBST(XULRUNNER_CFLAGS)
       AC_SUBST(XULRUNNER_LIBS)
-      
-      if test "x$XULRUNNER_HOME" = "x" ; then
-      	AC_MSG_RESULT([Fatal: XulRunner enabled, but library directory could not be determined! This usually happens when running against unstable versions of XulRunner 1.9 which is not supported in all Linux distros. Please compile against a stable build of XulRunner 1.9 instead.])
-      	exit 1
-      fi
 
       MOZILLA_LIB_ROOT=`$PKG_CONFIG --libs-only-L $XULRUNNER_PROVIDER | awk '{print $1}' |  cut -c 3-`
    
diff -urN liferea-1.4.20/src/mozilla/Makefile.am liferea-1.4.20.new/src/mozilla/Makefile.am
--- liferea-1.4.20/src/mozilla/Makefile.am	2007-07-23 19:56:53.000000000 +0200
+++ liferea-1.4.20.new/src/mozilla/Makefile.am	2008-10-06 16:36:16.000000000 +0200
@@ -37,14 +37,22 @@
 
 ## the XulRunner support module
 
+XULRUNNER_EXTRA_CFLAGS = \
+	-I/usr/include/xulrunner \
+	-I/usr/include/xulrunner/dom \
+	-I/usr/include/xulrunner/gtkembedmoz \
+	-I/usr/include/xulrunner/necko \
+	-I/usr/include/xulrunner/webbrwsr \
+	-I/usr/include/xulrunner/xpcom
+
 liblihtmlx_la_SOURCES = \
 	mozembed.c mozembed.h \
 	mozsupport.cpp mozsupport.h \
 	xulrunner.c
 
 liblihtmlx_la_LIBADD = $(PACKAGE_LIBS) $(XULRUNNER_LIBS) $(INTLLIBS)
-liblihtmlx_la_CFLAGS = $(XULRUNNER_CFLAGS) $(PACKAGE_CFLAGS)  -DXULRUNNER_HOME=\""$(XULRUNNER_HOME)\""
-liblihtmlx_la_CXXFLAGS = $(XULRUNNER_CFLAGS) $(PACKAGE_CFLAGS)
+liblihtmlx_la_CFLAGS = $(XULRUNNER_CFLAGS) $(XULRUNNER_EXTRA_CFLAGS) $(PACKAGE_CFLAGS)  -DXULRUNNER_HOME=\""$(XULRUNNER_HOME)\""
+liblihtmlx_la_CXXFLAGS = $(XULRUNNER_CFLAGS) $(XULRUNNER_EXTRA_CFLAGS) $(PACKAGE_CFLAGS)
 
 if PLATFORM_WIN32
 
diff -urN liferea-1.4.20/src/mozilla/xulrunner.c liferea-1.4.20.new/src/mozilla/xulrunner.c
--- liferea-1.4.20/src/mozilla/xulrunner.c	2008-07-01 19:04:55.000000000 +0200
+++ liferea-1.4.20.new/src/mozilla/xulrunner.c	2008-10-06 16:36:16.000000000 +0200
@@ -30,10 +30,12 @@
 
 static void xulrunner_init(void) {
 	
+#ifndef XPCOM_GLUE
 	/* gtk_moz_embed_set_comp_path() must not be called
 	   without a component path for XulRunner. Passing
 	   NULL will crash Liferea. */
 	gtk_moz_embed_set_comp_path(XULRUNNER_HOME);
+#endif
 
 	mozembed_init();	
 }