--- a/toolkit/components/telemetry/Scalars.yaml
+++ b/toolkit/components/telemetry/Scalars.yaml
@@ -719,16 +719,60 @@ gfx.advanced.layers:
     keyed: true
     kind: uint
     expires: "61"
     notification_emails:
       - gfx-telemetry-alerts@mozilla.com
     record_in_processes:
       - 'main'
 
+# The following section contains the form autofill related scalars.
+formautofill.addresses:
+  fill_type_manual:
+    bug_numbers:
+      - 990200
+    description: Count at submission time whether the submitted form was filled manually.
+    expires: never
+    kind: uint
+    notification_emails:
+      - autofill@lists.mozilla.org
+      - jcheng@mozilla.com
+      - chsiang@mozilla.com
+    release_channel_collection: opt-out
+    record_in_processes:
+      - 'main'
+  fill_type_autofill:
+    bug_numbers:
+      - 990200
+    description: Count at submission time whether the submitted form was autofilled.
+    expires: never
+    kind: uint
+    notification_emails:
+      - autofill@lists.mozilla.org
+      - jcheng@mozilla.com
+      - chsiang@mozilla.com
+    release_channel_collection: opt-out
+    record_in_processes:
+      - 'main'
+  fill_type_autofill_update:
+    bug_numbers:
+      - 990200
+    description: >
+      Count at submission time whether the submitted form was autofilled, but
+      the data in form is changed and can not be merged to orginal address profile.
+    expires: never
+    kind: uint
+    notification_emails:
+      - autofill@lists.mozilla.org
+      - jcheng@mozilla.com
+      - chsiang@mozilla.com
+    release_channel_collection: opt-out
+    record_in_processes:
+      - 'main'
+
 # The following section is for probes testing the Telemetry system. They will not be
 # submitted in pings and are only used for testing.
 telemetry.test:
   unsigned_int_kind:
     bug_numbers:
       - 1276190
     description: >
       This is a test uint type with a really long description, maybe spanning even multiple