--- a/mobile/chrome/content/browser.js
+++ b/mobile/chrome/content/browser.js
@@ -199,16 +199,46 @@ var BrowserApp = {
     window.dispatchEvent(event);
 
     // notify java that gecko has loaded
     sendMessageToJava({
       gecko: {
         type: "Gecko:Ready"
       }
     });
+
+    let telemetryPrompted = false;
+    try {
+      telemetryPrompted = Services.prefs.getBoolPref("toolkit.telemetry.prompted");
+    } catch (e) {
+      // optional
+    }
+
+    if (!telemetryPrompted) {
+      let buttons = [
+        {
+          label: Strings.browser.GetStringFromName("telemetry.optin.yes"),
+          callback: function () { 
+            Services.prefs.setBoolPref("toolkit.telemetry.prompted", true);
+            Services.prefs.setBoolPref("toolkit.telemetry.enabled", true);
+          }
+        },
+        {
+          label: Strings.browser.GetStringFromName("telemetry.optin.no"),
+          callback: function () { 
+            Services.prefs.setBoolPref("toolkit.telemetry.prompted", true);
+            Services.prefs.setBoolPref("toolkit.telemetry.enabled", false);
+          }
+        }
+      ];
+      let brandShortName = Strings.brand.GetStringFromName("brandShortName");
+      let message = Strings.browser.formatStringFromName("telemetry.optin.message", [brandShortName], 1);
+      NativeWindow.doorhanger.show(message, "telemetry-optin", buttons);
+    }
+
   },
 
   shutdown: function shutdown() {
     NativeWindow.uninit();
     OfflineApps.uninit();
 
     Services.obs.removeObserver(XPInstallObserver, "addon-install-blocked");
     Services.obs.removeObserver(XPInstallObserver, "addon-install-started");

--- a/mobile/locales/en-US/chrome/browser.properties
+++ b/mobile/locales/en-US/chrome/browser.properties
@@ -122,16 +122,21 @@ notificationRestart.button=Restart
 
 # Popup Blocker
 popupWarning=%S prevented this site from opening a pop-up window.
 popupWarningMultiple=%S prevented this site from opening %S pop-up windows.
 popupButtonAllowOnce=Show
 popupButtonAlwaysAllow2=Always Show
 popupButtonNeverWarn2=Never Show
 
+# Telemetry
+telemetry.optin.message=Help improve %S by sending anonymous usage information to Mozilla?
+telemetry.optin.yes=Yes
+telemetry.optin.no=No
+
 # XPInstall
 xpinstallPromptWarning2=%S prevented this site (%S) from asking you to install software on your device.
 xpinstallPromptAllowButton=Allow
 xpinstallDisabledMessageLocked=Software installation has been disabled by your system administrator.
 xpinstallDisabledMessage2=Software installation is currently disabled. Press Enable and try again.
 xpinstallDisabledButton=Enable
 
 # Site Identity