diff --git a/in/public/firefox/import_certificate_from_web_page.rst b/in/public/firefox/import_certificate_from_web_page.rst
index 0d6845d..cacddaa 100644
--- a/in/public/firefox/import_certificate_from_web_page.rst
+++ b/in/public/firefox/import_certificate_from_web_page.rst
@@ -13,6 +13,8 @@ CA certificate
 Client certificate
 ------------------
 
+.. warning:: doesn't work, bug still open
+
 ::
 
  application/x-x509-user-cert p12 pfx;