diff --git a/firefox/20-manual.yml b/firefox/20-manual.yml
index 5d2ae21..26c6d09 100644
--- a/firefox/20-manual.yml
+++ b/firefox/20-manual.yml
@@ -18,6 +18,8 @@ manual:
       params:
         my_identifier:
           type: identifier
+      description: |
+        in HTTPS case if "manual.use_for_https" is set to True
 
     address:
       description: "{{ identifier }} address"