1 files changed, 2 insertions, 2 deletions
diff --git a/browser/components/shell/test/head.js b/browser/components/shell/test/head.js
index db1f8811fd..692ba918d0 100644
--- a/browser/components/shell/test/head.js
+++ b/browser/components/shell/test/head.js
@@ -89,7 +89,7 @@ async function testWindowSizePositive(width, height) {
   }
 
   let data = await IOUtils.read(screenshotPath);
-  await new Promise((resolve, reject) => {
+  await new Promise(resolve => {
     let blob = new Blob([data], { type: "image/png" });
     let reader = new FileReader();
     reader.onloadend = function () {
@@ -126,7 +126,7 @@ async function testGreen(url, path) {
   }
 
   let data = await IOUtils.read(path);
-  let image = await new Promise((resolve, reject) => {
+  let image = await new Promise(resolve => {
     let blob = new Blob([data], { type: "image/png" });
     let reader = new FileReader();
     reader.onloadend = function () {