Firefox only message
diff --git a/templates/layouts/default.html.ep b/templates/layouts/default.html.ep
index 09af4f4..9d1ee0c 100644
--- a/templates/layouts/default.html.ep
+++ b/templates/layouts/default.html.ep
@@ -90,6 +90,7 @@
   <p>This is the alternative KorAP Frontend.</p>
   <p>The primary goal is to serve as a testbed for the query serialization and for different flavours of user interfaces.</p>
   <p>Search capabilities are limited to the demo user.</p>
+  <p>Currently the frontend only supports recent versions of Mozilla Firefox.</p>
 % end
 </main>