1 files changed, 1 insertions, 1 deletions
diff --git a/testing/talos/talos/startup_test/sessionrestore/addon/api.js b/testing/talos/talos/startup_test/sessionrestore/addon/api.js
index f621894623..87f0d46aee 100644
--- a/testing/talos/talos/startup_test/sessionrestore/addon/api.js
+++ b/testing/talos/talos/startup_test/sessionrestore/addon/api.js
@@ -28,7 +28,7 @@ this.sessionrestore = class extends ExtensionAPI {
     this.run();
   }
 
-  observe(subject, topic, data) {
+  observe(subject, topic) {
     if (topic == "browser-idle-startup-tasks-finished") {
       this.promiseIdleFinished.resolve();
     }