1 files changed, 1 insertions, 1 deletions
diff --git a/browser/base/content/test/performance/StartupContentSubframe.sys.mjs b/browser/base/content/test/performance/StartupContentSubframe.sys.mjs
index a78e456afb..7d2d711765 100644
--- a/browser/base/content/test/performance/StartupContentSubframe.sys.mjs
+++ b/browser/base/content/test/performance/StartupContentSubframe.sys.mjs
@@ -16,7 +16,7 @@ export class StartupContentSubframeParent extends JSWindowActorParent {
 }
 
 export class StartupContentSubframeChild extends JSWindowActorChild {
-  async handleEvent(event) {
+  async handleEvent() {
     // When the remote subframe is loaded, an event will be fired to this actor,
     // which will cause us to send the `LoadedScripts` message to the parent
     // process.