1 files changed, 1 insertions, 1 deletions
diff --git a/toolkit/components/antitracking/test/browser/3rdPartyWorker.html b/toolkit/components/antitracking/test/browser/3rdPartyWorker.html
index e79a992660..9544bfed2b 100644
--- a/toolkit/components/antitracking/test/browser/3rdPartyWorker.html
+++ b/toolkit/components/antitracking/test/browser/3rdPartyWorker.html
@@ -20,7 +20,7 @@ function is(a, b, msg) {
 }
 
 function workerCode() {
-  onmessage = e => {
+  onmessage = () => {
     try {
       indexedDB.open("test", "1");
       postMessage(true);