diff -Naur mozilla-tiff-plugin/Makefile mozilla-tiff-plugin.new/Makefile
--- mozilla-tiff-plugin/Makefile        2008-03-27 10:13:34.000000000 +0100
+++ mozilla-tiff-plugin.new/Makefile    2008-04-07 10:26:42.000000000 +0200
@@ -1,7 +1,7 @@
 CC=gcc
 LIB=`pkg-config --libs gtk+-2.0`
 INCLUDE=`pkg-config --cflags gtk+-2.0`
-PLUGIN_INCLUDE=-I/usr/include/mozilla/java -I/usr/include/mozilla/plugin -I/usr/include/mozilla -I/usr/include/mozilla/xpcom -I/usr/include/mozilla/string -I/usr/include/mozilla/nspr -I/usr/include/firefox -I/usr/include/firefox/nspr
+PLUGIN_INCLUDE=-I/usr/lib/mozilla-firefox/include/java -I/usr/lib/mozilla-firefox/include/plugin -I/usr/lib/mozilla-firefox/include -I/usr/lib/mozilla-firefox/include/xpcom -I/usr/lib/mozilla-firefox/include/string -I/usr/lib/mozilla-firefox/include/nspr -I/usr/lib/mozilla-firefox/include -I/usr/include/nspr

 #CFLAGS=-g
 CFLAGS=-O