Put Firefox config in the right place

files/customize-inner.sh

@@ -112,7 +112,7 @@ xmlstarlet ed -L -u "//property[@name='image-path']/@value" -v "$BG" $XML
 xmlstarlet ed -L -u "//property[@name='image-style']/@value" -v "3" $XML
 
 # Make Firefox nicer
-install -D -m 0644 files/syspref.js /etc/hosts.nilm
+install -D -m 0644 files/syspref.js /etc/firefox/syspref.js
 
 # Create NILM user.  This should happen after anything that we put in
 # /etc/skel, since files get copied from there.  Note that this user