1 files changed, 1 insertions, 1 deletions
diff --git a/toolkit/components/extensions/test/mochitest/head_cookies.js b/toolkit/components/extensions/test/mochitest/head_cookies.js
index 610c800c94..80c7f96266 100644
--- a/toolkit/components/extensions/test/mochitest/head_cookies.js
+++ b/toolkit/components/extensions/test/mochitest/head_cookies.js
@@ -30,7 +30,7 @@ async function testCookies(options) {
     let { url, domain, secure } = backgroundOptions;
 
     let failures = 0;
-    let tallyFailure = error => {
+    let tallyFailure = () => {
       failures++;
     };