1 files changed, 1 insertions, 1 deletions
diff --git a/browser/base/content/test/performance/browser_windowclose.js b/browser/base/content/test/performance/browser_windowclose.js
index 7d11779acc..11fa669be0 100644
--- a/browser/base/content/test/performance/browser_windowclose.js
+++ b/browser/base/content/test/performance/browser_windowclose.js
@@ -53,7 +53,7 @@ add_task(async function () {
     {
       expectedReflows: EXPECTED_REFLOWS,
       frames: {
-        filter(rects, frame, previousFrame) {
+        filter(rects, frame) {
           // Ignore the focus-out animation.
           if (isLikelyFocusChange(rects, frame)) {
             return [];