diff --git a/firefox/20-manual.yml b/firefox/20-manual.yml
index bbd0f25c..442fb2d3 100644
--- a/firefox/20-manual.yml
+++ b/firefox/20-manual.yml
@@ -5,4 +5,17 @@ version: 1.1
 manual:
 
   use_for_https: true  # Also use this proxy for HTTPS
+
+  https_proxy:  # HTTPS Proxy
+
+    address:
+      description: HTTPS address
+      type: domainname
+      params:
+        allow_ip: true
+
+    port:
+      description: HTTPS Port
+      type: port
+      default: 8080
 ...