diff --git a/browser/base/content/browser.js b/browser/base/content/browser.js
index 33c37b23f78..985d6fe20e7 100644
--- a/browser/base/content/browser.js
+++ b/browser/base/content/browser.js
@@ -3995,10 +3995,12 @@ var TabsProgressListener = {
     // Collect telemetry data about tab load times.
     if (aWebProgress.isTopLevel) {
       if (aStateFlags & Ci.nsIWebProgressListener.STATE_IS_WINDOW) {
-        if (aStateFlags & Ci.nsIWebProgressListener.STATE_START)
+        if (aStateFlags & Ci.nsIWebProgressListener.STATE_START) {
           TelemetryStopwatch.start("FX_PAGE_LOAD_MS", aBrowser);
-        else if (aStateFlags & Ci.nsIWebProgressListener.STATE_STOP)
+          Services.telemetry.getHistogramById("FX_TOTAL_TOP_VISITS").add(true);
+        } else if (aStateFlags & Ci.nsIWebProgressListener.STATE_STOP) {
           TelemetryStopwatch.finish("FX_PAGE_LOAD_MS", aBrowser);
+        }
       } else if (aStateFlags & Ci.nsIWebProgressListener.STATE_STOP &&
                  aStatus == Cr.NS_BINDING_ABORTED) {
         TelemetryStopwatch.cancel("FX_PAGE_LOAD_MS", aBrowser);
diff --git a/toolkit/components/telemetry/Histograms.json b/toolkit/components/telemetry/Histograms.json
index a9a9d92ff06..3424f29c05c 100644
--- a/toolkit/components/telemetry/Histograms.json
+++ b/toolkit/components/telemetry/Histograms.json
@@ -3255,6 +3255,11 @@
     "extended_statistics_ok": true,
     "description": "Firefox: Time taken to load a page (ms)"
   },
+  "FX_TOTAL_TOP_VISITS": {
+    "expires_in_version": "never",
+    "kind": "boolean",
+    "description": "Count the number of times a new top page was starting to load"
+  },
   "FX_THUMBNAILS_CAPTURE_TIME_MS": {
     "expires_in_version": "never",
     "kind": "exponential",