Adding xpinstall.js to the build. This will setup our prefs for us.

xpinstall/public/Makefile.in

@@ -42,6 +42,11 @@ EXPORTS =		             \
 
 EXPORTS := $(addprefix $(srcdir)/, $(EXPORTS))
 
+
+PREF_JS_EXPORTS	= 	$(srcdir)/xpinstall.js \
+			        $(NULL)
+
+
 include $(topsrcdir)/config/config.mk
 
 include $(topsrcdir)/config/rules.mk

xpinstall/public/makefile.win

@@ -34,3 +34,9 @@ XPIDLSRCS = .\nsIXPInstallProgress.idl
 
 include <$(DEPTH)\config\config.mak>
 include <$(DEPTH)\config\rules.mak>
+
+libs::
+    $(MAKE_INSTALL) .\xpinstall.js $(DIST)\bin\components\
+
+
+

xpinstall/public/xpinstall.js

@@ -0,0 +1,2 @@
+pref("xpinstall.enabled",       true);
+pref("xpinstall.show_details",  false);