--- a/dom/quota/StorageManager.cpp
+++ b/dom/quota/StorageManager.cpp
@@ -6,16 +6,17 @@
 
 #include "StorageManager.h"
 
 #include "mozilla/dom/PromiseWorkerProxy.h"
 #include "mozilla/dom/quota/QuotaManagerService.h"
 #include "mozilla/dom/StorageManagerBinding.h"
 #include "mozilla/dom/WorkerPrivate.h"
 #include "mozilla/ErrorResult.h"
+#include "mozilla/Telemetry.h"
 #include "nsContentPermissionHelper.h"
 #include "nsIQuotaCallbacks.h"
 #include "nsIQuotaRequests.h"
 #include "nsPIDOMWindow.h"
 
 using namespace mozilla::dom::workers;
 
 namespace mozilla {
@@ -833,26 +834,29 @@ StorageManager::Persisted(ErrorResult& a
                                        aRv);
 }
 
 already_AddRefed<Promise>
 StorageManager::Persist(ErrorResult& aRv)
 {
   MOZ_ASSERT(mOwner);
 
+  Telemetry::ScalarAdd(Telemetry::ScalarID::NAVIGATOR_STORAGE_PERSIST_COUNT, 1);
   return ExecuteOpOnMainOrWorkerThread(mOwner,
                                        RequestResolver::Type::Persist,
                                        aRv);
 }
 
 already_AddRefed<Promise>
 StorageManager::Estimate(ErrorResult& aRv)
 {
   MOZ_ASSERT(mOwner);
 
+  Telemetry::ScalarAdd(Telemetry::ScalarID::NAVIGATOR_STORAGE_ESTIMATE_COUNT,
+                       1);
   return ExecuteOpOnMainOrWorkerThread(mOwner,
                                        RequestResolver::Type::Estimate,
                                        aRv);
 }
 
 // static
 bool
 StorageManager::PrefEnabled(JSContext* aCx, JSObject* aObj)

--- a/toolkit/components/telemetry/Scalars.yaml
+++ b/toolkit/components/telemetry/Scalars.yaml
@@ -573,8 +573,39 @@ devtools.copy.full.css.selector:
     description: Number of times the DevTools copy full CSS selector has been used.
     expires: "57"
     kind: uint
     notification_emails:
       - dev-developer-tools@lists.mozilla.org
     release_channel_collection: opt-out
     record_in_processes:
       - 'main'
+
+navigator.storage:
+  estimate_count:
+    bug_numbers:
+      - 1359708
+    description: >
+      Number of times navigator.storage.estimate has been used.
+    expires: "60"
+    kind: uint
+    notification_emails:
+      - shuang@mozilla.com
+      - ttung@mozilla.com
+    release_channel_collection: opt-in
+    record_in_processes:
+      - 'main'
+      - 'content'
+
+  persist_count:
+    bug_numbers:
+      - 1359708
+    description: >
+      Number of times navigator.storage.persist has been used.
+    expires: "60"
+    kind: uint
+    notification_emails:
+      - shuang@mozilla.com
+      - ttung@mozilla.com
+    release_channel_collection: opt-in
+    record_in_processes:
+      - 'main'
+      - 'content'