--- a/toolkit/components/telemetry/TelemetryPing.js
+++ b/toolkit/components/telemetry/TelemetryPing.js
@@ -955,17 +955,17 @@ TelemetryPing.prototype = {
     }
     this.gatherStartupInformation();
   },
 
   enableLoadSaveNotifications: function enableLoadSaveNotifications() {
     this._doLoadSaveNotifications = true;
   },
 
-  addOns: function setAddOns(aAddOns) {
+  setAddOns: function setAddOns(aAddOns) {
     this._addons = aAddOns;
   },
 
   sendIdlePing: function sendIdlePing(aTest, aServer) {
     if (this._isIdleObserver) {
       idleService.removeIdleObserver(this, IDLE_TIMEOUT_SECONDS);
       this._isIdleObserver = false;
     }