Backed out changeset 95cf6de34f88 (bug 1672577) for Browser-chrome in toolkit/components/backgroundtasks/tests/browser/browser_xpcom_graph_wait.js. CLOSED TREE

toolkit/components/telemetry/Histograms.json

@@ -14408,6 +14408,16 @@
     "kind": "count",
     "description": "Tracking the total number of opened Containers."
   },
+  "NUMBER_OF_PROFILES": {
+    "record_in_processes": ["main", "content"],
+    "products": ["firefox", "fennec"],
+    "alert_emails": ["dtownsend@mozilla.com"],
+    "expires_in_version": "85",
+    "bug_numbers": [1296606, 1488881, 1490342, 1621948, 1649958],
+    "kind": "count",
+    "description": "Number of named browser profiles for the current user, as reported by the profile service at startup.",
+    "releaseChannelCollection": "opt-out"
+  },
   "TIME_TO_FIRST_CLICK_MS": {
     "record_in_processes": ["main", "content"],
     "products": ["firefox", "fennec"],

toolkit/components/telemetry/histogram-allowlists.json

@@ -1156,6 +1156,7 @@
     "MASTER_PASSWORD_ENABLED",
     "MEDIA_CODEC_USED",
     "NETWORK_CONNECTION_COUNT",
+    "NUMBER_OF_PROFILES",
     "OPENGL_COMPOSITING_FAILURE_ID",
     "PERMISSIONS_SQL_CORRUPTED",
     "PRINT_COUNT",

toolkit/xre/nsXREDirProvider.cpp

@@ -998,6 +998,20 @@ nsXREDirProvider::DoStartup() {
     }
     mozilla::Telemetry::Accumulate(mozilla::Telemetry::SAFE_MODE_USAGE, mode);
 
+    // Telemetry about number of profiles.
+    nsCOMPtr<nsIToolkitProfileService> profileService =
+        do_GetService("@mozilla.org/toolkit/profile-service;1");
+    if (profileService) {
+      uint32_t count = 0;
+      rv = profileService->GetProfileCount(&count);
+      if (NS_WARN_IF(NS_FAILED(rv))) {
+        return rv;
+      }
+
+      mozilla::Telemetry::Accumulate(mozilla::Telemetry::NUMBER_OF_PROFILES,
+                                     count);
+    }
+
     obsSvc->NotifyObservers(nullptr, "profile-initial-state", nullptr);
 
 #if defined(MOZ_SANDBOX)