3 files changed, 13 insertions, 13 deletions
diff --git a/image/test/browser/browser_bug666317.js b/image/test/browser/browser_bug666317.js
index 7f58c61c56..5d039575c8 100644
--- a/image/test/browser/browser_bug666317.js
+++ b/image/test/browser/browser_bug666317.js
@@ -15,11 +15,11 @@ var gScriptedObserver;
 var gClonedRequest;
 
 function ImageObserver(decodeCallback, discardCallback) {
-  this.decodeComplete = function onDecodeComplete(aRequest) {
+  this.decodeComplete = function onDecodeComplete() {
     decodeCallback();
   };
 
-  this.discard = function onDiscard(request) {
+  this.discard = function onDiscard() {
     if (!gWaitingForDiscard) {
       return;
     }
diff --git a/image/test/browser/browser_offscreen_image_in_out_of_process_iframe.js b/image/test/browser/browser_offscreen_image_in_out_of_process_iframe.js
index b431902eb7..346413b602 100644
--- a/image/test/browser/browser_offscreen_image_in_out_of_process_iframe.js
+++ b/image/test/browser/browser_offscreen_image_in_out_of_process_iframe.js
@@ -75,14 +75,14 @@ add_task(async function () {
     // Returns the count of frameUpdate during |time| (in ms) period.
     async function observeFrameUpdate(time) {
       function ImageDecoderObserverStub() {
-        this.sizeAvailable = function sizeAvailable(aRequest) {};
-        this.frameComplete = function frameComplete(aRequest) {};
-        this.decodeComplete = function decodeComplete(aRequest) {};
-        this.loadComplete = function loadComplete(aRequest) {};
-        this.frameUpdate = function frameUpdate(aRequest) {};
-        this.discard = function discard(aRequest) {};
-        this.isAnimated = function isAnimated(aRequest) {};
-        this.hasTransparency = function hasTransparency(aRequest) {};
+        this.sizeAvailable = function sizeAvailable() {};
+        this.frameComplete = function frameComplete() {};
+        this.decodeComplete = function decodeComplete() {};
+        this.loadComplete = function loadComplete() {};
+        this.frameUpdate = function frameUpdate() {};
+        this.discard = function discard() {};
+        this.isAnimated = function isAnimated() {};
+        this.hasTransparency = function hasTransparency() {};
       }
 
       // Start from the callback of setTimeout.
@@ -140,7 +140,7 @@ add_task(async function () {
     await new Promise(resolve => requestAnimationFrame(resolve));
 
     frameCount = await SpecialPowers.spawn(iframe, [1000], observeFrameUpdate);
-    ok(frameCount > 0, "There should be frameUpdate(s)");
+    Assert.greater(frameCount, 0, "There should be frameUpdate(s)");
 
     await new Promise(resolve => requestAnimationFrame(resolve));
 
diff --git a/image/test/browser/head.js b/image/test/browser/head.js
index 29fc67a1a7..00f35babb2 100644
--- a/image/test/browser/head.js
+++ b/image/test/browser/head.js
@@ -27,7 +27,7 @@ function actOnMozImage(doc, id, func) {
 
 function assertPrefVal(name, val) {
   let boolValue = Services.prefs.getBoolPref(name);
-  ok(boolValue === val, `pref ${name} is set to ${val}`);
+  Assert.strictEqual(boolValue, val, `pref ${name} is set to ${val}`);
   if (boolValue !== val) {
     throw Error(`pref ${name} is not set to ${val}`);
   }
@@ -121,7 +121,7 @@ async function createMozIconInFile(ext, expectSuccess = true) {
     await waitLoad;
 
     const icon = content.document.getElementById(`moz-icon-${_ext}-${_kSize}`);
-    ok(icon !== null, `got a valid ${_ext} moz-icon`);
+    Assert.notStrictEqual(icon, null, `got a valid ${_ext} moz-icon`);
     is(icon.width, _kSize, `${_kSize} px width ${_ext} moz-icon`);
     is(icon.height, _kSize, `${_kSize} px height ${_ext} moz-icon`);
   };