diff --git a/src/manifest.json b/src/manifest.json
index 28995e7..3c7cdca 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -1,6 +1,6 @@
 {
   "name": "Page load time",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "manifest_version": 2,
   "description": "Displays page load time in the toolbar",
   "background": {
diff --git a/src/timer.js b/src/timer.js
index 2c90738..31c937b 100644
--- a/src/timer.js
+++ b/src/timer.js
@@ -12,8 +12,16 @@
             if (t.loadEventEnd > 0) {
                 // we have only 4 chars in our disposal including decimal point
                 var time = String(((t.loadEventEnd - start) / 1000).toPrecision(3)).substring(0, 4);
-                var roe = chrome.runtime && chrome.runtime.sendMessage ? 'runtime' : 'extension';            
-                chrome[roe].sendMessage({time: time, timing: t});
+                var roe = chrome.runtime && chrome.runtime.sendMessage ? 'runtime' : 'extension';
+
+                // since Chrome 43 JSON.stringify() doesn't work for PerformanceTiming
+                // https://code.google.com/p/chromium/issues/detail?id=467366
+                // need to manually copy properties via for .. in loop
+                var timing = {};
+                for (p in t) {
+                    timing[p] = t[p];
+                }
+                chrome[roe].sendMessage({time: time, timing: timing});
             }
         }, 0);
     }