diff --git a/mobile/android/base/TelemetryContract.java b/mobile/android/base/TelemetryContract.java
index 1f084205bb17..b9f79ecb9602 100644
--- a/mobile/android/base/TelemetryContract.java
+++ b/mobile/android/base/TelemetryContract.java
@@ -29,13 +29,19 @@ public interface TelemetryContract {
 
         // Set default panel.
         public static final String PANEL_SET_DEFAULT = "setdefault.1";
+
+        // Sanitizing private data.
+        public static final String SANITIZE = "sanitize.1";
     }
 
     /**
      * Holds event methods. Intended for use in
      * Telemetry.sendUIEvent() as the "method" parameter.
      */
-    public interface Method {}
+    public interface Method {
+        // Action triggered from a dialog.
+        public static final String DIALOG = "dialog";
+    }
 
     /**
      * Holds session names. Intended for use with
diff --git a/mobile/android/base/preferences/PrivateDataPreference.java b/mobile/android/base/preferences/PrivateDataPreference.java
index 38d1a459265b..eb42ef6d0d0e 100644
--- a/mobile/android/base/preferences/PrivateDataPreference.java
+++ b/mobile/android/base/preferences/PrivateDataPreference.java
@@ -7,6 +7,8 @@ package org.mozilla.gecko.preferences;
 
 import org.mozilla.gecko.GeckoAppShell;
 import org.mozilla.gecko.GeckoEvent;
+import org.mozilla.gecko.Telemetry;
+import org.mozilla.gecko.TelemetryContract;
 
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -33,6 +35,8 @@ class PrivateDataPreference extends MultiChoicePreference {
         if (!positiveResult)
             return;
 
+        Telemetry.sendUIEvent(TelemetryContract.Event.SANITIZE, TelemetryContract.Method.DIALOG);
+
         CharSequence keys[] = getEntryKeys();
         boolean values[] = getValues();
         JSONObject json = new JSONObject();