1 files changed, 4 insertions, 4 deletions
diff --git a/dom/media/autoplay/test/browser/head.js b/dom/media/autoplay/test/browser/head.js
index c84850900a..6522104b7f 100644
--- a/dom/media/autoplay/test/browser/head.js
+++ b/dom/media/autoplay/test/browser/head.js
@@ -29,10 +29,10 @@ function loadAutoplayVideo(browser, args) {
     info("- create a new autoplay video -");
     let video = content.document.createElement("video");
     video.id = "v1";
-    video.didPlayPromise = new Promise((resolve, reject) => {
+    video.didPlayPromise = new Promise(resolve => {
       video.addEventListener(
         "playing",
-        e => {
+        () => {
           video.didPlay = true;
           resolve();
         },
@@ -40,7 +40,7 @@ function loadAutoplayVideo(browser, args) {
       );
       video.addEventListener(
         "blocked",
-        e => {
+        () => {
           video.didPlay = false;
           resolve();
         },
@@ -54,7 +54,7 @@ function loadAutoplayVideo(browser, args) {
       info("will call play() when reached loadedmetadata");
       video.addEventListener(
         "loadedmetadata",
-        e => {
+        () => {
           video.play().then(
             () => {
               info("video play() resolved");