diff --git a/firefox-version.patch b/firefox-version.patch
new file mode 100644
index 0000000..892f40c
--- /dev/null
+++ b/firefox-version.patch
@@ -0,0 +1,12 @@
+diff -up mozilla-1.9.2/browser/installer/Makefile.in.version mozilla-1.9.2/browser/installer/Makefile.in
+--- mozilla-1.9.2/browser/installer/Makefile.in.version	2009-11-09 01:33:57.000000000 +0100
++++ mozilla-1.9.2/browser/installer/Makefile.in	2009-11-13 13:48:15.000000000 +0100
+@@ -43,6 +43,8 @@ VPATH		= @srcdir@
+ 
+ include $(DEPTH)/config/autoconf.mk
+ 
++MOZ_APP_VERSION="__RPM_VERSION_INTERNAL__"
++
+ NO_PKG_FILES = \
+ 	$(MOZ_APP_NAME)-config \
+ 	$(MOZ_APP_NAME)-bin.elf \