diff --git a/testing/talos/talos/tests/devtools/addon/content/tests/debugger/debugger-helpers.js b/testing/talos/talos/tests/devtools/addon/content/tests/debugger/debugger-helpers.js
index 8847c0f90bf1..57e83fb2b26f 100644
--- a/testing/talos/talos/tests/devtools/addon/content/tests/debugger/debugger-helpers.js
+++ b/testing/talos/talos/tests/devtools/addon/content/tests/debugger/debugger-helpers.js
@@ -17,7 +17,19 @@ const InspectorUtils = require("InspectorUtils");

 const DEBUGGER_POLLING_INTERVAL = 50;

+
+const mark =
+  window.performance && window.performance.mark
+    ? window.performance.mark.bind(window.performance)
+    : a => {};
+
+const measure =
+  window.performance && window.performance.measure
+    ? window.performance.measure.bind(window.performance)
+    : (a, b, c) => {};
+
 function waitForState(dbg, predicate, msg) {
+  const key = msg.replace(/\s+/,'_')
   return new Promise(resolve => {
     if (msg) {
       dump(`Waiting for state change: ${msg}\n`);
@@ -28,12 +40,14 @@ function waitForState(dbg, predicate, msg) {
       }
       return resolve();
     }
-
+    mark(`${key}_start`);
     const unsubscribe = dbg.store.subscribe(() => {
       if (predicate(dbg.store.getState())) {
         if (msg) {
           dump(`Finished waiting for state change: ${msg}\n`);
         }
+        mark(`${key}_end`);
+        measure(`wait_for_${key}`, `${key}_start`, `${key}_end`);
         unsubscribe();
         resolve();
       }