diff --git a/scripts/install.sh b/scripts/install.sh
index 8e04456..04babac 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -47,4 +47,8 @@ if [ "$GNOMISHEXTRAS" = true ] ; then
 	sed -i '2s/^/@import "theme\/matching-autocomplete-width.css";\n/' firefox-gnome-theme/customChrome.css
 fi
 
+# Symlink user.js to firefox-gnome-theme one.
+echo "Set configuration user.js file"
+ln -s firefox-gnome-theme/configuration/user.js ../user.js
+
 echo "Done."