5 files changed, 6 insertions, 6 deletions
diff --git a/dom/crypto/test/test-array.js b/dom/crypto/test/test-array.js
index 0d7f67433f..357694f9de 100644
--- a/dom/crypto/test/test-array.js
+++ b/dom/crypto/test/test-array.js
@@ -112,7 +112,7 @@ function WorkerTest(worker, name, test) {
 
     // We expect only boolean responses from the worker script.
     worker.onmessage = e => this.complete(e.data);
-    worker.onerror = e => this.complete(false);
+    worker.onerror = () => this.complete(false);
   };
 
   var base = new Test(name, test);
diff --git a/dom/crypto/test/test-worker.js b/dom/crypto/test/test-worker.js
index 263877ad08..47a365a66f 100644
--- a/dom/crypto/test/test-worker.js
+++ b/dom/crypto/test/test-worker.js
@@ -31,7 +31,7 @@ function memcmp_complete(test, value) {
   };
 }
 
-function error(test) {
+function error() {
   return function (x) {
     throw x;
   };
diff --git a/dom/crypto/test/test_WebCrypto.html b/dom/crypto/test/test_WebCrypto.html
index 90da813880..aded1bdd91 100644
--- a/dom/crypto/test/test_WebCrypto.html
+++ b/dom/crypto/test/test_WebCrypto.html
@@ -56,7 +56,7 @@ TestArray.addTest(
     crypto.subtle.importKey("raw", tv.raw, alg, true, ["encrypt"])
       .then(
         error(that),
-        complete(that, function(x) { return true; })
+        complete(that, function() { return true; })
       );
   }
 );
@@ -982,7 +982,7 @@ TestArray.addTest(
       .then(doVerify)
       .then(
         error(that),
-        complete(that, function(x) { return true; })
+        complete(that, function() { return true; })
       );
   }
 );
diff --git a/dom/crypto/test/test_WebCrypto_ECDH.html b/dom/crypto/test/test_WebCrypto_ECDH.html
index 2d8f9bba28..8386d3c3dd 100644
--- a/dom/crypto/test/test_WebCrypto_ECDH.html
+++ b/dom/crypto/test/test_WebCrypto_ECDH.html
@@ -61,7 +61,7 @@ TestArray.addTest(
     function setKeyPair(x) { pair = x; }
 
     function doDerive(n) {
-      return function(x) {
+      return function() {
         return crypto.subtle.deriveBits({ name: "ECDH", public: pair.publicKey }, pair.privateKey, n * 8);
       };
     }
diff --git a/dom/crypto/test/test_WebCrypto_JWK.html b/dom/crypto/test/test_WebCrypto_JWK.html
index 6e83a73d8d..4fa2af5dce 100644
--- a/dom/crypto/test/test_WebCrypto_JWK.html
+++ b/dom/crypto/test/test_WebCrypto_JWK.html
@@ -76,7 +76,7 @@ TestArray.addTest(
     function doVerify(x) {
       return crypto.subtle.verify(alg.name, x, tv.rsassa.sig256, tv.rsassa.data);
     }
-    function fail(x) { error(that); }
+    function fail() { error(that); }
 
     crypto.subtle.importKey("jwk", tv.rsassa.jwk_pub, alg, false, ["verify"])
       .then( doVerify, fail )