Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

38 files changed, 2558 insertions, 0 deletions

diff --git a/image/test/unit/async_load_tests.js b/image/test/unit/async_load_tests.js
new file mode 100644
index 0000000000..06792349ee
--- /dev/null
+++ b/image/test/unit/async_load_tests.js
@@ -0,0 +1,298 @@
+/*
+ * Test to ensure that image loading/decoding notifications are always
+ * delivered async, and in the order we expect.
+ *
+ * Must be included from a file that has a uri of the image to test defined in
+ * var uri.
+ */
+/* import-globals-from image_load_helpers.js */
+
+const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
+const { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
+const ReferrerInfo = Components.Constructor(
+  "@mozilla.org/referrer-info;1",
+  "nsIReferrerInfo",
+  "init"
+);
+
+var server = new HttpServer();
+server.registerDirectory("/", do_get_file(""));
+server.registerContentType("sjs", "sjs");
+server.start(-1);
+
+load("image_load_helpers.js");
+
+var requests = [];
+/* global uri */
+
+// Return a closure that holds on to the listener from the original
+// imgIRequest, and compares its results to the cloned one.
+function getCloneStopCallback(original_listener) {
+  return function cloneStop(listener) {
+    Assert.equal(original_listener.state, listener.state);
+
+    // Sanity check to make sure we didn't accidentally use the same listener
+    // twice.
+    Assert.notEqual(original_listener, listener);
+    do_test_finished();
+  };
+}
+
+// Make sure that cloned requests get all the same callbacks as the original,
+// but they aren't synchronous right now.
+function checkClone(other_listener, aRequest) {
+  do_test_pending();
+
+  // For as long as clone notification is synchronous, we can't test the clone state reliably.
+  var listener = new ImageListener(
+    null,
+    function (foo, bar) {
+      do_test_finished();
+    } /* getCloneStopCallback(other_listener)*/
+  );
+  listener.synchronous = false;
+  var outer = Cc["@mozilla.org/image/tools;1"]
+    .getService(Ci.imgITools)
+    .createScriptedObserver(listener);
+  var clone = aRequest.clone(outer);
+  requests.push({ request: clone, locked: false });
+}
+
+// Ensure that all the callbacks were called on aRequest.
+function checkSizeAndLoad(listener, aRequest) {
+  Assert.notEqual(listener.state & SIZE_AVAILABLE, 0);
+  Assert.notEqual(listener.state & LOAD_COMPLETE, 0);
+
+  do_test_finished();
+}
+
+function secondLoadDone(oldlistener, aRequest) {
+  do_test_pending();
+
+  try {
+    var staticrequest = aRequest.getStaticRequest();
+
+    // For as long as clone notification is synchronous, we can't test the
+    // clone state reliably.
+    var listener = new ImageListener(null, checkSizeAndLoad);
+    listener.synchronous = false;
+    var outer = Cc["@mozilla.org/image/tools;1"]
+      .getService(Ci.imgITools)
+      .createScriptedObserver(listener);
+    var staticrequestclone = staticrequest.clone(outer);
+    requests.push({ request: staticrequestclone, locked: false });
+  } catch (e) {
+    // We can't create a static request. Most likely the request we started
+    // with didn't load successfully.
+    do_test_finished();
+  }
+
+  run_loadImageWithChannel_tests();
+
+  do_test_finished();
+}
+
+// Load the request a second time. This should come from the image cache, and
+// therefore would be at most risk of being served synchronously.
+function checkSecondLoad() {
+  do_test_pending();
+
+  var listener = new ImageListener(checkClone, secondLoadDone);
+  var outer = Cc["@mozilla.org/image/tools;1"]
+    .getService(Ci.imgITools)
+    .createScriptedObserver(listener);
+  var referrerInfo = new ReferrerInfo(
+    Ci.nsIReferrerInfo.NO_REFERRER_WHEN_DOWNGRADE,
+    true,
+    null
+  );
+  requests.push({
+    request: gCurrentLoader.loadImageXPCOM(
+      uri,
+      null,
+      referrerInfo,
+      null,
+      null,
+      outer,
+      null,
+      0,
+      null
+    ),
+    locked: false,
+  });
+  listener.synchronous = false;
+}
+
+function firstLoadDone(oldlistener, aRequest) {
+  checkSecondLoad(uri);
+
+  do_test_finished();
+}
+
+// Return a closure that allows us to check the stream listener's status when the
+// image finishes loading.
+function getChannelLoadImageStopCallback(streamlistener, next) {
+  return function channelLoadStop(imglistener, aRequest) {
+    next();
+
+    do_test_finished();
+  };
+}
+
+// Load the request a second time. This should come from the image cache, and
+// therefore would be at most risk of being served synchronously.
+function checkSecondChannelLoad() {
+  do_test_pending();
+  var channel = NetUtil.newChannel({ uri, loadUsingSystemPrincipal: true });
+  var channellistener = new ChannelListener();
+  channel.asyncOpen(channellistener);
+
+  var listener = new ImageListener(
+    null,
+    getChannelLoadImageStopCallback(channellistener, all_done_callback)
+  );
+  var outer = Cc["@mozilla.org/image/tools;1"]
+    .getService(Ci.imgITools)
+    .createScriptedObserver(listener);
+  var outlistener = {};
+  requests.push({
+    request: gCurrentLoader.loadImageWithChannelXPCOM(
+      channel,
+      outer,
+      null,
+      outlistener
+    ),
+    locked: false,
+  });
+  channellistener.outputListener = outlistener.value;
+
+  listener.synchronous = false;
+}
+
+function run_loadImageWithChannel_tests() {
+  // To ensure we're testing what we expect to, create a new loader and cache.
+  gCurrentLoader = Cc["@mozilla.org/image/loader;1"].createInstance(
+    Ci.imgILoader
+  );
+
+  do_test_pending();
+  var channel = NetUtil.newChannel({ uri, loadUsingSystemPrincipal: true });
+  var channellistener = new ChannelListener();
+  channel.asyncOpen(channellistener);
+
+  var listener = new ImageListener(
+    null,
+    getChannelLoadImageStopCallback(channellistener, checkSecondChannelLoad)
+  );
+  var outer = Cc["@mozilla.org/image/tools;1"]
+    .getService(Ci.imgITools)
+    .createScriptedObserver(listener);
+  var outlistener = {};
+  requests.push({
+    request: gCurrentLoader.loadImageWithChannelXPCOM(
+      channel,
+      outer,
+      null,
+      outlistener
+    ),
+    locked: false,
+  });
+  channellistener.outputListener = outlistener.value;
+
+  listener.synchronous = false;
+}
+
+function all_done_callback() {
+  server.stop(function () {
+    do_test_finished();
+  });
+}
+
+function startImageCallback(otherCb) {
+  return function (listener, request) {
+    // Make sure we can load the same image immediately out of the cache.
+    do_test_pending();
+    var listener2 = new ImageListener(null, function (foo, bar) {
+      do_test_finished();
+    });
+    var outer = Cc["@mozilla.org/image/tools;1"]
+      .getService(Ci.imgITools)
+      .createScriptedObserver(listener2);
+    var referrerInfo = new ReferrerInfo(
+      Ci.nsIReferrerInfo.NO_REFERRER_WHEN_DOWNGRADE,
+      true,
+      null
+    );
+    requests.push({
+      request: gCurrentLoader.loadImageXPCOM(
+        uri,
+        null,
+        referrerInfo,
+        null,
+        null,
+        outer,
+        null,
+        0,
+        null
+      ),
+      locked: false,
+    });
+    listener2.synchronous = false;
+
+    // Now that we've started another load, chain to the callback.
+    otherCb(listener, request);
+  };
+}
+
+var gCurrentLoader;
+
+function cleanup() {
+  for (let { request, locked } of requests) {
+    if (locked) {
+      try {
+        request.unlockImage();
+      } catch (e) {}
+    }
+    request.cancelAndForgetObserver(0);
+  }
+}
+
+function run_test() {
+  registerCleanupFunction(cleanup);
+
+  gCurrentLoader = Cc["@mozilla.org/image/loader;1"].createInstance(
+    Ci.imgILoader
+  );
+
+  do_test_pending();
+  var listener = new ImageListener(
+    startImageCallback(checkClone),
+    firstLoadDone
+  );
+  var outer = Cc["@mozilla.org/image/tools;1"]
+    .getService(Ci.imgITools)
+    .createScriptedObserver(listener);
+  var referrerInfo = new ReferrerInfo(
+    Ci.nsIReferrerInfo.NO_REFERRER_WHEN_DOWNGRADE,
+    true,
+    null
+  );
+  var req = gCurrentLoader.loadImageXPCOM(
+    uri,
+    null,
+    referrerInfo,
+    null,
+    null,
+    outer,
+    null,
+    0,
+    null
+  );
+
+  // Ensure that we don't cause any mayhem when we lock an image.
+  req.lockImage();
+
+  requests.push({ request: req, locked: true });
+
+  listener.synchronous = false;
+}
diff --git a/image/test/unit/bug413512.ico b/image/test/unit/bug413512.ico
new file mode 100644
index 0000000000..b2db0429f6
--- /dev/null
+++ b/image/test/unit/bug413512.ico
diff --git a/image/test/unit/bug815359.ico b/image/test/unit/bug815359.ico
new file mode 100644
index 0000000000..a24b8fb6bb
--- /dev/null
+++ b/image/test/unit/bug815359.ico
diff --git a/image/test/unit/image1.png b/image/test/unit/image1.png
new file mode 100644
index 0000000000..2fb37aeec4
--- /dev/null
+++ b/image/test/unit/image1.png
diff --git a/image/test/unit/image1.webp b/image/test/unit/image1.webp
new file mode 100644
index 0000000000..b2a6f92aaa
--- /dev/null
+++ b/image/test/unit/image1.webp
diff --git a/image/test/unit/image1png16x16.jpg b/image/test/unit/image1png16x16.jpg
new file mode 100644
index 0000000000..488b563c90
--- /dev/null
+++ b/image/test/unit/image1png16x16.jpg
diff --git a/image/test/unit/image1png64x64.jpg b/image/test/unit/image1png64x64.jpg
new file mode 100644
index 0000000000..679dad2b95
--- /dev/null
+++ b/image/test/unit/image1png64x64.jpg
diff --git a/image/test/unit/image1quality50.webp b/image/test/unit/image1quality50.webp
new file mode 100644
index 0000000000..f73d615657
--- /dev/null
+++ b/image/test/unit/image1quality50.webp
diff --git a/image/test/unit/image2.jpg b/image/test/unit/image2.jpg
new file mode 100644
index 0000000000..b2131bf0c1
--- /dev/null
+++ b/image/test/unit/image2.jpg
diff --git a/image/test/unit/image2jpg16x16-win.png b/image/test/unit/image2jpg16x16-win.png
new file mode 100644
index 0000000000..a821626c07
--- /dev/null
+++ b/image/test/unit/image2jpg16x16-win.png
diff --git a/image/test/unit/image2jpg16x16.png b/image/test/unit/image2jpg16x16.png
new file mode 100644
index 0000000000..b5b9a720a8
--- /dev/null
+++ b/image/test/unit/image2jpg16x16.png
diff --git a/image/test/unit/image2jpg16x16cropped.jpg b/image/test/unit/image2jpg16x16cropped.jpg
new file mode 100644
index 0000000000..fca22cb30a
--- /dev/null
+++ b/image/test/unit/image2jpg16x16cropped.jpg
diff --git a/image/test/unit/image2jpg16x16cropped2.jpg b/image/test/unit/image2jpg16x16cropped2.jpg
new file mode 100644
index 0000000000..e51d3530d3
--- /dev/null
+++ b/image/test/unit/image2jpg16x16cropped2.jpg
diff --git a/image/test/unit/image2jpg16x32cropped3.jpg b/image/test/unit/image2jpg16x32cropped3.jpg
new file mode 100644
index 0000000000..13a3d26e54
--- /dev/null
+++ b/image/test/unit/image2jpg16x32cropped3.jpg
diff --git a/image/test/unit/image2jpg16x32scaled.jpg b/image/test/unit/image2jpg16x32scaled.jpg
new file mode 100644
index 0000000000..6abef0f99b
--- /dev/null
+++ b/image/test/unit/image2jpg16x32scaled.jpg
diff --git a/image/test/unit/image2jpg32x16cropped4.jpg b/image/test/unit/image2jpg32x16cropped4.jpg
new file mode 100644
index 0000000000..46f34918c8
--- /dev/null
+++ b/image/test/unit/image2jpg32x16cropped4.jpg
diff --git a/image/test/unit/image2jpg32x16scaled.jpg b/image/test/unit/image2jpg32x16scaled.jpg
new file mode 100644
index 0000000000..e302fbafd0
--- /dev/null
+++ b/image/test/unit/image2jpg32x16scaled.jpg
diff --git a/image/test/unit/image2jpg32x32-win.png b/image/test/unit/image2jpg32x32-win.png
new file mode 100644
index 0000000000..4d84df26a0
--- /dev/null
+++ b/image/test/unit/image2jpg32x32-win.png
diff --git a/image/test/unit/image2jpg32x32.jpg b/image/test/unit/image2jpg32x32.jpg
new file mode 100644
index 0000000000..cf9a10a37f
--- /dev/null
+++ b/image/test/unit/image2jpg32x32.jpg
diff --git a/image/test/unit/image2jpg32x32.png b/image/test/unit/image2jpg32x32.png
new file mode 100644
index 0000000000..42640cbb53
--- /dev/null
+++ b/image/test/unit/image2jpg32x32.png
diff --git a/image/test/unit/image3.ico b/image/test/unit/image3.ico
new file mode 100644
index 0000000000..d44438903b
--- /dev/null
+++ b/image/test/unit/image3.ico
diff --git a/image/test/unit/image3ico16x16.png b/image/test/unit/image3ico16x16.png
new file mode 100644
index 0000000000..fa61cc5046
--- /dev/null
+++ b/image/test/unit/image3ico16x16.png
diff --git a/image/test/unit/image3ico32x32.png b/image/test/unit/image3ico32x32.png
new file mode 100644
index 0000000000..58a72e5c9d
--- /dev/null
+++ b/image/test/unit/image3ico32x32.png
diff --git a/image/test/unit/image4.gif b/image/test/unit/image4.gif
new file mode 100644
index 0000000000..b1530bc81e
--- /dev/null
+++ b/image/test/unit/image4.gif
diff --git a/image/test/unit/image4gif16x16bmp24bpp.ico b/image/test/unit/image4gif16x16bmp24bpp.ico
new file mode 100644
index 0000000000..890c81c272
--- /dev/null
+++ b/image/test/unit/image4gif16x16bmp24bpp.ico
diff --git a/image/test/unit/image4gif16x16bmp32bpp.ico b/image/test/unit/image4gif16x16bmp32bpp.ico
new file mode 100644
index 0000000000..f8a9eb8adc
--- /dev/null
+++ b/image/test/unit/image4gif16x16bmp32bpp.ico
diff --git a/image/test/unit/image4gif32x32bmp24bpp.ico b/image/test/unit/image4gif32x32bmp24bpp.ico
new file mode 100644
index 0000000000..28092818dc
--- /dev/null
+++ b/image/test/unit/image4gif32x32bmp24bpp.ico
diff --git a/image/test/unit/image4gif32x32bmp32bpp.ico b/image/test/unit/image4gif32x32bmp32bpp.ico
new file mode 100644
index 0000000000..0e2d28c82a
--- /dev/null
+++ b/image/test/unit/image4gif32x32bmp32bpp.ico
diff --git a/image/test/unit/image_load_helpers.js b/image/test/unit/image_load_helpers.js
new file mode 100644
index 0000000000..6d1e605bf5
--- /dev/null
+++ b/image/test/unit/image_load_helpers.js
@@ -0,0 +1,124 @@
+/*
+ * Helper structures to track callbacks from image and channel loads.
+ */
+
+// START_REQUEST and STOP_REQUEST are used by ChannelListener, and
+// stored in ChannelListener.requestStatus.
+const START_REQUEST = 0x01;
+const STOP_REQUEST = 0x02;
+const DATA_AVAILABLE = 0x04;
+
+// One bit per callback that imageListener below implements. Stored in
+// ImageListener.state.
+const SIZE_AVAILABLE = 0x01;
+const FRAME_UPDATE = 0x02;
+const FRAME_COMPLETE = 0x04;
+const LOAD_COMPLETE = 0x08;
+const DECODE_COMPLETE = 0x10;
+
+// Safebrowsing requires that the profile dir is set.
+do_get_profile();
+
+// An implementation of imgIScriptedNotificationObserver with the ability to
+// call specified functions on onStartRequest and onStopRequest.
+function ImageListener(start_callback, stop_callback) {
+  this.sizeAvailable = function onSizeAvailable(aRequest) {
+    Assert.ok(!this.synchronous);
+
+    this.state |= SIZE_AVAILABLE;
+
+    if (this.start_callback) {
+      this.start_callback(this, aRequest);
+    }
+  };
+  this.frameComplete = function onFrameComplete(aRequest) {
+    Assert.ok(!this.synchronous);
+
+    this.state |= FRAME_COMPLETE;
+  };
+  this.decodeComplete = function onDecodeComplete(aRequest) {
+    Assert.ok(!this.synchronous);
+
+    this.state |= DECODE_COMPLETE;
+  };
+  this.loadComplete = function onLoadcomplete(aRequest) {
+    Assert.ok(!this.synchronous);
+
+    this.state |= LOAD_COMPLETE;
+
+    if (this.stop_callback) {
+      this.stop_callback(this, aRequest);
+    }
+  };
+  this.frameUpdate = function onFrameUpdate(aRequest) {};
+  this.isAnimated = function onIsAnimated() {};
+
+  // Initialize the synchronous flag to true to start. This must be set to
+  // false before exiting to the event loop!
+  this.synchronous = true;
+
+  // A function to call when onStartRequest is called.
+  this.start_callback = start_callback;
+
+  // A function to call when onStopRequest is called.
+  this.stop_callback = stop_callback;
+
+  // The image load/decode state.
+  // A bitfield that tracks which callbacks have been called. Takes the bits
+  // defined above.
+  this.state = 0;
+}
+
+function NS_FAILED(val) {
+  return !!(val & 0x80000000);
+}
+
+function ChannelListener() {
+  this.onStartRequest = function onStartRequest(aRequest) {
+    if (this.outputListener) {
+      this.outputListener.onStartRequest(aRequest);
+    }
+
+    this.requestStatus |= START_REQUEST;
+  };
+
+  this.onDataAvailable = function onDataAvailable(
+    aRequest,
+    aInputStream,
+    aOffset,
+    aCount
+  ) {
+    if (this.outputListener) {
+      this.outputListener.onDataAvailable(
+        aRequest,
+        aInputStream,
+        aOffset,
+        aCount
+      );
+    }
+
+    this.requestStatus |= DATA_AVAILABLE;
+  };
+
+  this.onStopRequest = function onStopRequest(aRequest, aStatusCode) {
+    if (this.outputListener) {
+      this.outputListener.onStopRequest(aRequest, aStatusCode);
+    }
+
+    // If we failed (or were canceled - failure is implied if canceled),
+    // there's no use tracking our state, since it's meaningless.
+    if (NS_FAILED(aStatusCode)) {
+      this.requestStatus = 0;
+    } else {
+      this.requestStatus |= STOP_REQUEST;
+    }
+  };
+
+  // A listener to pass the notifications we get to.
+  this.outputListener = null;
+
+  // The request's status. A bitfield that holds one or both of START_REQUEST
+  // and STOP_REQUEST, according to which callbacks have been called on the
+  // associated request.
+  this.requestStatus = 0;
+}
diff --git a/image/test/unit/test_async_notification.js b/image/test/unit/test_async_notification.js
new file mode 100644
index 0000000000..3f5f47c271
--- /dev/null
+++ b/image/test/unit/test_async_notification.js
@@ -0,0 +1,15 @@
+/*
+ * Test for asynchronous image load/decode notifications in the case that the image load works.
+ */
+
+// A simple 3x3 png; rows go red, green, blue. Stolen from the PNG encoder test.
+
+var pngspec =
+  "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAAEUlEQVQImWP4z8AAQTAamQkAhpcI+DeMzFcAAAAASUVORK5CYII=";
+var ioService = Services.io;
+
+// This is used in async_load_tests.js
+/* exported uri */
+var uri = ioService.newURI(pngspec);
+
+load("async_load_tests.js");
diff --git a/image/test/unit/test_async_notification_404.js b/image/test/unit/test_async_notification_404.js
new file mode 100644
index 0000000000..c8aab9fe1d
--- /dev/null
+++ b/image/test/unit/test_async_notification_404.js
@@ -0,0 +1,23 @@
+/*
+ * Test to ensure that load/decode notifications are delivered completely and
+ * asynchronously when dealing with a file that's a 404.
+ */
+/* import-globals-from async_load_tests.js */
+
+const { XPCOMUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/XPCOMUtils.sys.mjs"
+);
+
+var ioService = Services.io;
+
+// This is used in async_load_tests.js
+// eslint-disable-next-line no-unused-vars
+XPCOMUtils.defineLazyGetter(this, "uri", function () {
+  return ioService.newURI(
+    "http://localhost:" +
+      server.identity.primaryPort +
+      "/async-notification-never-here.jpg"
+  );
+});
+
+load("async_load_tests.js");
diff --git a/image/test/unit/test_async_notification_animated.js b/image/test/unit/test_async_notification_animated.js
new file mode 100644
index 0000000000..f201f90f60
--- /dev/null
+++ b/image/test/unit/test_async_notification_animated.js
@@ -0,0 +1,19 @@
+/*
+ * Test for asynchronous image load/decode notifications in the case that the
+ * image load works, but for an animated image.
+ *
+ * If this fails because a request wasn't cancelled, it's possible that
+ * imgContainer::ExtractFrame didn't set the new image's status correctly.
+ */
+
+// transparent-animation.gif from the gif reftests.
+
+var spec =
+  "data:image/gif;base64,R0lGODlhZABkAIABAP8AAP///yH5BAkBAAEALAAAAABLAGQAAAK8jI+py+0Po5y02ouz3rz7D4biSJbmiabqyrbuC8fyTNf2jef6zvf+DwwKh8Si8YhMKpchgPMJjUqnVOipis1ir9qul+sNV8HistVkTj/JajG7/UXDy+95tm4fy/NdPF/q93dWIqgVWAhwWKgoyPjnyAeZJ2lHOWcJh9mmqcaZ5mkGSreHOCXqRloadRrGGkeoapoa6+TaN0tra4gbq3vHq+q7BVwqrMeEnKy8zNzs/AwdLT1NXW19jZ1tUgAAIfkECQEAAQAsAAAAADQAZAAAArCMj6nL7Q+jnLTai7PevPsPhuJIluaJpurKtu4Lx/JM1/aN5/rO9/7vAAiHxKLxiCRCkswmc+mMSqHSapJqzSof2u4Q67WCw1MuOTs+N9Pqq7kdZcON8vk2aF+/88g6358HaCc4Rwhn2IaopnjGSOYYBukl2UWpZYm2x0enuXnX4NnXGQqAKTYaalqlWoZH+snwWsQah+pJ64Sr5ypbCvQLHCw8TFxsfIycrLzM3PxQAAAh+QQJAQABACwAAAAAGwBkAAACUIyPqcvtD6OctNqLs968+w+G4kiW5omm6sq27gTE8kzX9o3n+s73/g8MCofEovGITCqXzKbzCY1Kp9Sq9YrNarfcrvdrfYnH5LL5jE6r16sCADs=";
+var ioService = Services.io;
+
+// This is used in async_load_tests.js
+/* exported uri */
+var uri = ioService.newURI(spec);
+
+load("async_load_tests.js");
diff --git a/image/test/unit/test_encoder_apng.js b/image/test/unit/test_encoder_apng.js
new file mode 100644
index 0000000000..f055a0335f
--- /dev/null
+++ b/image/test/unit/test_encoder_apng.js
@@ -0,0 +1,582 @@
+/*
+ * Test for APNG encoding in ImageLib
+ *
+ */
+
+// dispose=[none|background|previous]
+// blend=[source|over]
+
+var apng1A = {
+  // A 3x3 image with 3 frames, alternating red, green, blue. RGB format.
+  width: 3,
+  height: 3,
+  skipFirstFrame: false,
+  format: Ci.imgIEncoder.INPUT_FORMAT_RGB,
+  transparency: null,
+  plays: 0,
+
+  frames: [
+    {
+      // frame #1
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGB,
+      stride: 9,
+      transparency: null,
+
+      pixels: [
+        255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255,
+        0, 0, 255, 0, 0, 255, 0, 0,
+      ],
+    },
+
+    {
+      // frame #2
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGB,
+      stride: 9,
+      transparency: null,
+
+      pixels: [
+        0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0,
+        255, 0, 0, 255, 0, 0, 255, 0,
+      ],
+    },
+
+    {
+      // frame #3
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGB,
+      stride: 9,
+      transparency: null,
+
+      pixels: [
+        0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0,
+        255, 0, 0, 255, 0, 0, 255,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAACGFjVEwAAAADAAAAAM7tusAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AAAdRYgGAAAAA9JREFUCFtj/M8ABYxYWAA5IQMBD9nE1QAAABpmY1RMAAAAAQAAAAMAAAADAAAAAAAAAAAB9APoAADuZcrMAAAAFGZkQVQAAAACCFtjZPjPAAGMWFgANiQDAVBdoI8AAAAaZmNUTAAAAAMAAAADAAAAAwAAAAAAAAAAAfQD6AAAA/MZJQAAABVmZEFUAAAABAhbY2Rg+M8ABoxYWAAzJwMBWk5KPwAAAABJRU5ErkJggg==",
+};
+
+var apng1B = {
+  // A 3x3 image with 3 frames, alternating red, green, blue. RGBA format.
+  width: 3,
+  height: 3,
+  skipFirstFrame: false,
+  format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+  transparency: null,
+  plays: 0,
+
+  frames: [
+    {
+      // frame #1
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0,
+        0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255,
+      ],
+    },
+
+    {
+      // frame #2
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255,
+        0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255,
+      ],
+    },
+
+    {
+      // frame #3
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0,
+        255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255,
+        255,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAADAAAAAM7tusAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AAAdRYgGAAAABJJREFUCFtj/M/AAEQQwIiTAwCM6AX+t+X3FQAAABpmY1RMAAAAAQAAAAMAAAADAAAAAAAAAAAB9APoAADuZcrMAAAAFWZkQVQAAAACCFtjZPgPhFDAiJMDAInrBf4Q0nfOAAAAGmZjVEwAAAADAAAAAwAAAAMAAAAAAAAAAAH0A+gAAAPzGSUAAAAWZmRBVAAAAAQIW2NkYPj/nwEKGHFyAIbuBf50PCpiAAAAAElFTkSuQmCC",
+};
+
+var apng1C = {
+  // A 3x3 image with 3 frames, alternating red, green, blue. RGBA format.
+  // The first frame is skipped, so it will only flash green/blue (or static red in an APNG-unaware viewer)
+  width: 3,
+  height: 3,
+  skipFirstFrame: true,
+  format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+  transparency: null,
+  plays: 0,
+
+  frames: [
+    {
+      // frame #1
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0,
+        0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255,
+      ],
+    },
+
+    {
+      // frame #2
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255,
+        0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255,
+      ],
+    },
+
+    {
+      // frame #3
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0,
+        255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255,
+        255,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAACAAAAAPONk3AAAAASSURBVAhbY/zPwABEEMCIkwMAjOgF/rfl9xUAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AAAdRYgGAAAABVmZEFUAAAAAQhbY2T4D4RQwIiTAwCJ6wX++lSqrAAAABpmY1RMAAAAAgAAAAMAAAADAAAAAAAAAAAB9APoAACYgPPxAAAAFmZkQVQAAAADCFtjZGD4/58BChhxcgCG7gX+PgKhKQAAAABJRU5ErkJggg==",
+};
+
+var apng2A = {
+  // A 3x3 image with 3 frames, alternating red, green, blue. RGBA format.
+  // blend = over mode
+  // (The green frame is a horizontal gradient, and the blue frame is a
+  // vertical gradient. They stack as they animate.)
+  width: 3,
+  height: 3,
+  skipFirstFrame: false,
+  format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+  transparency: null,
+  plays: 0,
+
+  frames: [
+    {
+      // frame #1
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0,
+        0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255,
+      ],
+    },
+
+    {
+      // frame #2
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "over",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        0, 255, 0, 255, 0, 255, 0, 180, 0, 255, 0, 75, 0, 255, 0, 255, 0, 255,
+        0, 180, 0, 255, 0, 75, 0, 255, 0, 255, 0, 255, 0, 180, 0, 255, 0, 75,
+      ],
+    },
+
+    {
+      // frame #3
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "over",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        0, 0, 255, 75, 0, 0, 255, 75, 0, 0, 255, 75, 0, 0, 255, 180, 0, 0, 255,
+        180, 0, 0, 255, 180, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAADAAAAAM7tusAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AAAdRYgGAAAABJJREFUCFtj/M/AAEQQwIiTAwCM6AX+t+X3FQAAABpmY1RMAAAAAQAAAAMAAAADAAAAAAAAAAAB9APoAAGZYvpaAAAAGWZkQVQAAAACCFtjZPgPhAwMW4F4OiNODgDI3wnis0vjTAAAABpmY1RMAAAAAwAAAAMAAAADAAAAAAAAAAAB9APoAAF09CmzAAAAHGZkQVQAAAAECFtjZGD4780ABYxAzhZkzn8YBwBn4AT/ernr+wAAAABJRU5ErkJggg==",
+};
+
+var apng2B = {
+  // A 3x3 image with 3 frames, alternating red, green, blue. RGBA format.
+  // blend = over, dispose = background
+  // (The green frame is a horizontal gradient, and the blue frame is a
+  // vertical gradient. Each frame is displayed individually, blended to
+  // whatever the background is.)
+  width: 3,
+  height: 3,
+  skipFirstFrame: false,
+  format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+  transparency: null,
+  plays: 0,
+
+  frames: [
+    {
+      // frame #1
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "background",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0,
+        0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255,
+      ],
+    },
+
+    {
+      // frame #2
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "background",
+      blend: "over",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        0, 255, 0, 255, 0, 255, 0, 180, 0, 255, 0, 75, 0, 255, 0, 255, 0, 255,
+        0, 180, 0, 255, 0, 75, 0, 255, 0, 255, 0, 255, 0, 180, 0, 255, 0, 75,
+      ],
+    },
+
+    {
+      // frame #3
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "background",
+      blend: "over",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        0, 0, 255, 75, 0, 0, 255, 75, 0, 0, 255, 75, 0, 0, 255, 180, 0, 0, 255,
+        180, 0, 0, 255, 180, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAADAAAAAM7tusAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AEAbA0RWQAAABJJREFUCFtj/M/AAEQQwIiTAwCM6AX+t+X3FQAAABpmY1RMAAAAAQAAAAMAAAADAAAAAAAAAAAB9APoAQGAecsbAAAAGWZkQVQAAAACCFtjZPgPhAwMW4F4OiNODgDI3wnis0vjTAAAABpmY1RMAAAAAwAAAAMAAAADAAAAAAAAAAAB9APoAQFt7xjyAAAAHGZkQVQAAAAECFtjZGD4780ABYxAzhZkzn8YBwBn4AT/ernr+wAAAABJRU5ErkJggg==",
+};
+
+var apng3 = {
+  // A 3x3 image with 4 frames. First frame is white, then 1x1 frames draw a diagonal line
+  width: 3,
+  height: 3,
+  skipFirstFrame: false,
+  format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+  transparency: null,
+  plays: 0,
+
+  frames: [
+    {
+      // frame #1
+      width: 3,
+      height: 3,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+        255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+        255, 255, 255, 255, 255, 255, 255, 255,
+      ],
+    },
+
+    {
+      // frame #2
+      width: 1,
+      height: 1,
+      x_offset: 0,
+      y_offset: 0,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [0, 0, 0, 255],
+    },
+
+    {
+      // frame #3
+      width: 1,
+      height: 1,
+      x_offset: 1,
+      y_offset: 1,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [0, 0, 0, 255],
+    },
+
+    {
+      // frame #4
+      width: 1,
+      height: 1,
+      x_offset: 2,
+      y_offset: 2,
+      dispose: "none",
+      blend: "source",
+      delay: 500,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [0, 0, 0, 255],
+    },
+  ],
+
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAAEAAAAAHzNZtAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AAAdRYgGAAAABFJREFUCFtj/A8EDFDAiJMDABlqC/jamhxvAAAAGmZjVEwAAAABAAAAAQAAAAEAAAAAAAAAAAH0A+gAADJXfawAAAARZmRBVAAAAAIIW2NgYGD4DwABBAEA0iEgKQAAABpmY1RMAAAAAwAAAAEAAAABAAAAAQAAAAEB9APoAAC4OHoxAAAAEWZkQVQAAAAECFtjYGBg+A8AAQQBACrja58AAAAaZmNUTAAAAAUAAAABAAAAAQAAAAIAAAACAfQD6AAA/fh01wAAABFmZEFUAAAABghbY2BgYPgPAAEEAQDLja8yAAAAAElFTkSuQmCC",
+};
+
+// Main test entry point.
+function run_test() {
+  dump("Checking apng1A...\n");
+  run_test_for(apng1A);
+  dump("Checking apng1B...\n");
+  run_test_for(apng1B);
+  dump("Checking apng1C...\n");
+  run_test_for(apng1C);
+
+  dump("Checking apng2A...\n");
+  run_test_for(apng2A);
+  dump("Checking apng2B...\n");
+  run_test_for(apng2B);
+
+  dump("Checking apng3...\n");
+  run_test_for(apng3);
+}
+
+function run_test_for(input) {
+  var encoder, dataURL;
+
+  encoder = encodeImage(input);
+  dataURL = makeDataURL(encoder, "image/png");
+  Assert.equal(dataURL, input.expected);
+}
+
+function encodeImage(input) {
+  var encoder =
+    Cc["@mozilla.org/image/encoder;2?type=image/png"].createInstance();
+  encoder.QueryInterface(Ci.imgIEncoder);
+
+  var options = "";
+  if (input.transparency) {
+    options += "transparency=" + input.transparency;
+  }
+  options += ";frames=" + input.frames.length;
+  options += ";skipfirstframe=" + (input.skipFirstFrame ? "yes" : "no");
+  options += ";plays=" + input.plays;
+  encoder.startImageEncode(input.width, input.height, input.format, options);
+
+  for (var i = 0; i < input.frames.length; i++) {
+    var frame = input.frames[i];
+
+    options = "";
+    if (frame.transparency) {
+      options += "transparency=" + input.transparency;
+    }
+    options += ";delay=" + frame.delay;
+    options += ";dispose=" + frame.dispose;
+    options += ";blend=" + frame.blend;
+    if (frame.x_offset > 0) {
+      options += ";xoffset=" + frame.x_offset;
+    }
+    if (frame.y_offset > 0) {
+      options += ";yoffset=" + frame.y_offset;
+    }
+
+    encoder.addImageFrame(
+      frame.pixels,
+      frame.pixels.length,
+      frame.width,
+      frame.height,
+      frame.stride,
+      frame.format,
+      options
+    );
+  }
+
+  encoder.endImageEncode();
+
+  return encoder;
+}
+
+function makeDataURL(encoder, mimetype) {
+  var rawStream = encoder.QueryInterface(Ci.nsIInputStream);
+
+  var stream = Cc["@mozilla.org/binaryinputstream;1"].createInstance();
+  stream.QueryInterface(Ci.nsIBinaryInputStream);
+
+  stream.setInputStream(rawStream);
+
+  var bytes = stream.readByteArray(stream.available()); // returns int[]
+
+  var base64String = toBase64(bytes);
+
+  return "data:" + mimetype + ";base64," + base64String;
+}
+
+/* toBase64 copied from extensions/xml-rpc/src/nsXmlRpcClient.js */
+
+/* Convert data (an array of integers) to a Base64 string. */
+const toBase64Table =
+  // eslint-disable-next-line no-useless-concat
+  "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" + "0123456789+/";
+const base64Pad = "=";
+function toBase64(data) {
+  var result = "";
+  var length = data.length;
+  var i;
+  // Convert every three bytes to 4 ascii characters.
+  for (i = 0; i < length - 2; i += 3) {
+    result += toBase64Table[data[i] >> 2];
+    result += toBase64Table[((data[i] & 0x03) << 4) + (data[i + 1] >> 4)];
+    result += toBase64Table[((data[i + 1] & 0x0f) << 2) + (data[i + 2] >> 6)];
+    result += toBase64Table[data[i + 2] & 0x3f];
+  }
+
+  // Convert the remaining 1 or 2 bytes, pad out to 4 characters.
+  if (length % 3) {
+    i = length - (length % 3);
+    result += toBase64Table[data[i] >> 2];
+    if (length % 3 == 2) {
+      result += toBase64Table[((data[i] & 0x03) << 4) + (data[i + 1] >> 4)];
+      result += toBase64Table[(data[i + 1] & 0x0f) << 2];
+      result += base64Pad;
+    } else {
+      result += toBase64Table[(data[i] & 0x03) << 4];
+      result += base64Pad + base64Pad;
+    }
+  }
+
+  return result;
+}
diff --git a/image/test/unit/test_encoder_png.js b/image/test/unit/test_encoder_png.js
new file mode 100644
index 0000000000..73e91f573f
--- /dev/null
+++ b/image/test/unit/test_encoder_png.js
@@ -0,0 +1,263 @@
+/*
+ * Test for PNG encoding in ImageLib
+ *
+ */
+
+var png1A = {
+  // A 3x3 image, rows are red, green, blue.
+  // RGB format, transparency defaults.
+
+  transparency: null,
+
+  frames: [
+    {
+      width: 3,
+      height: 3,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGB,
+      stride: 9,
+
+      pixels: [
+        255, 0, 0, 255, 0, 0, 255, 0, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 0,
+        255, 0, 0, 255, 0, 0, 255,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAAFElEQVQIW2P8zwAFjAwwJiMDjAkANiQDAUpvlioAAAAASUVORK5CYII=",
+};
+
+var png1B = {
+  // A 3x3 image, rows are red, green, blue.
+  // RGB format, transparency=none.
+
+  transparency: "none",
+
+  frames: [
+    {
+      width: 3,
+      height: 3,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGB,
+      stride: 9,
+
+      pixels: [
+        255, 0, 0, 255, 0, 0, 255, 0, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 0,
+        255, 0, 0, 255, 0, 0, 255,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAAFElEQVQIW2P8zwAFjAwwJiMDjAkANiQDAUpvlioAAAAASUVORK5CYII=",
+};
+
+var png2A = {
+  // A 3x3 image, rows are: red, green, blue. Columns are: 0%, 33%, 66% transparent.
+
+  transparency: null,
+
+  frames: [
+    {
+      width: 3,
+      height: 3,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        255, 0, 0, 255, 255, 0, 0, 170, 255, 0, 0, 85, 0, 255, 0, 255, 0, 255,
+        0, 170, 0, 255, 0, 85, 0, 0, 255, 255, 0, 0, 255, 170, 0, 0, 255, 85,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAAGUlEQVQIW2P8z8AARAyrQZgRyETiMPyHcwDKCwoAGxxLEQAAAABJRU5ErkJggg==",
+};
+
+var png2B = {
+  // A 3x3 image, rows are: red, green, blue. Columns are: 0%, 33%, 66% transparent,
+  // but transparency will be ignored.
+
+  transparency: "none",
+
+  frames: [
+    {
+      width: 3,
+      height: 3,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        255, 0, 0, 255, 255, 0, 0, 170, 255, 0, 0, 85, 0, 255, 0, 255, 0, 255,
+        0, 170, 0, 255, 0, 85, 0, 0, 255, 255, 0, 0, 255, 170, 0, 0, 255, 85,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAAFElEQVQIW2P8zwAFjAwwJiMDjAkANiQDAUpvlioAAAAASUVORK5CYII=",
+};
+
+// Main test entry point.
+function run_test() {
+  dump("Checking png1A...\n");
+  run_test_for(png1A);
+  dump("Checking png1B...\n");
+  run_test_for(png1B);
+  dump("Checking png2A...\n");
+  run_test_for(png2A);
+  dump("Checking png2B...\n");
+  run_test_for(png2B);
+}
+
+function run_test_for(input) {
+  var encoder, dataURL;
+
+  encoder = encodeImage(input);
+  dataURL = makeDataURL(encoder, "image/png");
+  Assert.equal(dataURL, input.expected);
+
+  encoder = encodeImageAsync(input);
+  dataURL = makeDataURLFromAsync(encoder, "image/png", input.expected);
+}
+
+function encodeImage(input) {
+  var encoder =
+    Cc["@mozilla.org/image/encoder;2?type=image/png"].createInstance();
+  encoder.QueryInterface(Ci.imgIEncoder);
+
+  var options = "";
+  if (input.transparency) {
+    options += "transparency=" + input.transparency;
+  }
+
+  var frame = input.frames[0];
+  encoder.initFromData(
+    frame.pixels,
+    frame.pixels.length,
+    frame.width,
+    frame.height,
+    frame.stride,
+    frame.format,
+    options
+  );
+  return encoder;
+}
+
+function _encodeImageAsyncFactory(frame, options, encoder) {
+  function finishEncode() {
+    encoder.addImageFrame(
+      frame.pixels,
+      frame.pixels.length,
+      frame.width,
+      frame.height,
+      frame.stride,
+      frame.format,
+      options
+    );
+    encoder.endImageEncode();
+  }
+  return finishEncode;
+}
+
+function encodeImageAsync(input) {
+  var encoder =
+    Cc["@mozilla.org/image/encoder;2?type=image/png"].createInstance();
+  encoder.QueryInterface(Ci.imgIEncoder);
+
+  var options = "";
+  if (input.transparency) {
+    options += "transparency=" + input.transparency;
+  }
+
+  var frame = input.frames[0];
+  encoder.startImageEncode(frame.width, frame.height, frame.format, options);
+
+  do_timeout(50, _encodeImageAsyncFactory(frame, options, encoder));
+  return encoder;
+}
+
+function makeDataURL(encoder, mimetype) {
+  var rawStream = encoder.QueryInterface(Ci.nsIInputStream);
+
+  var stream = Cc["@mozilla.org/binaryinputstream;1"].createInstance();
+  stream.QueryInterface(Ci.nsIBinaryInputStream);
+
+  stream.setInputStream(rawStream);
+
+  var bytes = stream.readByteArray(stream.available()); // returns int[]
+
+  var base64String = toBase64(bytes);
+
+  return "data:" + mimetype + ";base64," + base64String;
+}
+
+function makeDataURLFromAsync(encoder, mimetype, expected) {
+  do_test_pending();
+  var rawStream = encoder.QueryInterface(Ci.nsIAsyncInputStream);
+
+  var currentThread =
+    Cc["@mozilla.org/thread-manager;1"].getService().currentThread;
+
+  var bytes = [];
+
+  var binarystream = Cc["@mozilla.org/binaryinputstream;1"].createInstance();
+  binarystream.QueryInterface(Ci.nsIBinaryInputStream);
+
+  var asyncReader = {
+    onInputStreamReady(stream) {
+      binarystream.setInputStream(stream);
+      var available = 0;
+      try {
+        available = stream.available();
+      } catch (e) {}
+
+      if (available > 0) {
+        bytes = bytes.concat(binarystream.readByteArray(available));
+        stream.asyncWait(this, 0, 0, currentThread);
+      } else {
+        var base64String = toBase64(bytes);
+        var dataURL = "data:" + mimetype + ";base64," + base64String;
+        Assert.equal(dataURL, expected);
+        do_test_finished();
+      }
+    },
+  };
+  rawStream.asyncWait(asyncReader, 0, 0, currentThread);
+}
+
+/* toBase64 copied from extensions/xml-rpc/src/nsXmlRpcClient.js */
+
+/* Convert data (an array of integers) to a Base64 string. */
+const toBase64Table =
+  // eslint-disable-next-line no-useless-concat
+  "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" + "0123456789+/";
+const base64Pad = "=";
+function toBase64(data) {
+  var result = "";
+  var length = data.length;
+  var i;
+  // Convert every three bytes to 4 ascii characters.
+  for (i = 0; i < length - 2; i += 3) {
+    result += toBase64Table[data[i] >> 2];
+    result += toBase64Table[((data[i] & 0x03) << 4) + (data[i + 1] >> 4)];
+    result += toBase64Table[((data[i + 1] & 0x0f) << 2) + (data[i + 2] >> 6)];
+    result += toBase64Table[data[i + 2] & 0x3f];
+  }
+
+  // Convert the remaining 1 or 2 bytes, pad out to 4 characters.
+  if (length % 3) {
+    i = length - (length % 3);
+    result += toBase64Table[data[i] >> 2];
+    if (length % 3 == 2) {
+      result += toBase64Table[((data[i] & 0x03) << 4) + (data[i + 1] >> 4)];
+      result += toBase64Table[(data[i + 1] & 0x0f) << 2];
+      result += base64Pad;
+    } else {
+      result += toBase64Table[(data[i] & 0x03) << 4];
+      result += base64Pad + base64Pad;
+    }
+  }
+
+  return result;
+}
diff --git a/image/test/unit/test_imgtools.js b/image/test/unit/test_imgtools.js
new file mode 100644
index 0000000000..7f832a6b12
--- /dev/null
+++ b/image/test/unit/test_imgtools.js
@@ -0,0 +1,869 @@
+/*
+ * Tests for imgITools
+ */
+
+const { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
+
+/*
+ * dumpToFile()
+ *
+ * For test development, dumps the specified array to a file.
+ * Call |dumpToFile(outData);| in a test to file to a file.
+ */
+// eslint-disable-next-line no-unused-vars
+function dumpToFile(aData) {
+  var outputFile = do_get_cwd();
+  outputFile.append("testdump.webp");
+
+  var outputStream = Cc[
+    "@mozilla.org/network/file-output-stream;1"
+  ].createInstance(Ci.nsIFileOutputStream);
+  // WR_ONLY|CREATE|TRUNC
+  outputStream.init(outputFile, 0x02 | 0x08 | 0x20, 0o644, null);
+
+  var bos = Cc["@mozilla.org/binaryoutputstream;1"].createInstance(
+    Ci.nsIBinaryOutputStream
+  );
+  bos.setOutputStream(outputStream);
+
+  bos.writeByteArray(aData);
+
+  outputStream.close();
+}
+
+/*
+ * getFileInputStream()
+ *
+ * Returns an input stream for the specified file.
+ */
+function getFileInputStream(aFile) {
+  var inputStream = Cc[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Ci.nsIFileInputStream);
+  // init the stream as RD_ONLY, -1 == default permissions.
+  inputStream.init(aFile, 0x01, -1, null);
+
+  // Blah. The image decoders use ReadSegments, which isn't implemented on
+  // file input streams. Use a buffered stream to make it work.
+  var bis = Cc["@mozilla.org/network/buffered-input-stream;1"].createInstance(
+    Ci.nsIBufferedInputStream
+  );
+  bis.init(inputStream, 1024);
+
+  return bis;
+}
+
+/*
+ * streamToArray()
+ *
+ * Consumes an input stream, and returns its bytes as an array.
+ */
+function streamToArray(aStream) {
+  var size = aStream.available();
+
+  // use a binary input stream to grab the bytes.
+  var bis = Cc["@mozilla.org/binaryinputstream;1"].createInstance(
+    Ci.nsIBinaryInputStream
+  );
+  bis.setInputStream(aStream);
+
+  var bytes = bis.readByteArray(size);
+  if (size != bytes.length) {
+    throw new Error("Didn't read expected number of bytes");
+  }
+
+  return bytes;
+}
+
+/*
+ * compareArrays
+ *
+ * Compares two arrays, and throws if there's a difference.
+ */
+function compareArrays(aArray1, aArray2) {
+  Assert.equal(aArray1.length, aArray2.length);
+
+  for (var i = 0; i < aArray1.length; i++) {
+    if (aArray1[i] != aArray2[i]) {
+      throw new Error("arrays differ at index " + i);
+    }
+  }
+}
+
+/*
+ * checkExpectedError
+ *
+ * Checks to see if a thrown error was expected or not, and if it
+ * matches the expected value.
+ */
+function checkExpectedError(aExpectedError, aActualError) {
+  if (aExpectedError) {
+    if (!aActualError) {
+      throw new Error("Didn't throw as expected (" + aExpectedError + ")");
+    }
+
+    if (!aExpectedError.test(aActualError)) {
+      throw new Error("Threw (" + aActualError + "), not (" + aExpectedError);
+    }
+
+    // We got the expected error, so make a note in the test log.
+    dump("...that error was expected.\n\n");
+  } else if (aActualError) {
+    throw new Error("Threw unexpected error: " + aActualError);
+  }
+}
+
+function run_test() {
+  try {
+    /* ========== 0 ========== */
+    var testnum = 0;
+    var testdesc = "imgITools setup";
+    var err = null;
+
+    var imgTools = Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools);
+
+    if (!imgTools) {
+      throw new Error("Couldn't get imgITools service");
+    }
+
+    // Ugh, this is an ugly hack. The pixel values we get in Windows are sometimes
+    // +/- 1 value compared to other platforms, so we need to compare against a
+    // different set of reference images. nsIXULRuntime.OS doesn't seem to be
+    // available in xpcshell, so we'll use this as a kludgy way to figure out if
+    // we're running on Windows.
+    var isWindows = mozinfo.os == "win";
+
+    /* ========== 1 ========== */
+    testnum++;
+    testdesc = "test decoding a PNG";
+
+    // 64x64 png, 8415 bytes.
+    var imgName = "image1.png";
+    var inMimeType = "image/png";
+    var imgFile = do_get_file(imgName);
+
+    var istream = getFileInputStream(imgFile);
+    Assert.equal(istream.available(), 8415);
+
+    var buffer = NetUtil.readInputStreamToString(istream, istream.available());
+    var container = imgTools.decodeImageFromBuffer(
+      buffer,
+      buffer.length,
+      inMimeType
+    );
+
+    // It's not easy to look at the pixel values from JS, so just
+    // check the container's size.
+    Assert.equal(container.width, 64);
+    Assert.equal(container.height, 64);
+
+    /* ========== 2 ========== */
+    testnum++;
+    testdesc = "test encoding a scaled JPEG";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeScaledImage(container, "image/jpeg", 16, 16);
+
+    var encodedBytes = streamToArray(istream);
+    // Get bytes for expected result
+    var refName = "image1png16x16.jpg";
+    var refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 1050);
+    var referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 3 ========== */
+    testnum++;
+    testdesc = "test encoding an unscaled JPEG";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeImage(container, "image/jpeg");
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image1png64x64.jpg";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 4507);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 4 ========== */
+    testnum++;
+    testdesc = "test decoding a JPEG";
+
+    // 32x32 jpeg, 3494 bytes.
+    imgName = "image2.jpg";
+    inMimeType = "image/jpeg";
+    imgFile = do_get_file(imgName);
+
+    istream = getFileInputStream(imgFile);
+    Assert.equal(istream.available(), 3494);
+
+    buffer = NetUtil.readInputStreamToString(istream, istream.available());
+    container = imgTools.decodeImageFromBuffer(
+      buffer,
+      buffer.length,
+      inMimeType
+    );
+
+    // It's not easy to look at the pixel values from JS, so just
+    // check the container's size.
+    Assert.equal(container.width, 32);
+    Assert.equal(container.height, 32);
+
+    /* ========== 5 ========== */
+    testnum++;
+    testdesc = "test encoding a scaled PNG";
+
+    if (!isWindows) {
+      // we'll reuse the container from the previous test
+      istream = imgTools.encodeScaledImage(container, "image/png", 16, 16);
+
+      encodedBytes = streamToArray(istream);
+      // Get bytes for expected result
+      refName = isWindows ? "image2jpg16x16-win.png" : "image2jpg16x16.png";
+      refFile = do_get_file(refName);
+      istream = getFileInputStream(refFile);
+      Assert.equal(istream.available(), 955);
+      referenceBytes = streamToArray(istream);
+
+      // compare the encoder's output to the reference file.
+      compareArrays(encodedBytes, referenceBytes);
+    }
+
+    /* ========== 6 ========== */
+    testnum++;
+    testdesc = "test encoding an unscaled PNG";
+
+    if (!isWindows) {
+      // we'll reuse the container from the previous test
+      istream = imgTools.encodeImage(container, "image/png");
+      encodedBytes = streamToArray(istream);
+
+      // Get bytes for expected result
+      refName = isWindows ? "image2jpg32x32-win.png" : "image2jpg32x32.png";
+      refFile = do_get_file(refName);
+      istream = getFileInputStream(refFile);
+      Assert.equal(istream.available(), 3026);
+      referenceBytes = streamToArray(istream);
+
+      // compare the encoder's output to the reference file.
+      compareArrays(encodedBytes, referenceBytes);
+    }
+
+    /* ========== 7 ========== */
+    testnum++;
+    testdesc = "test decoding a ICO";
+
+    // 16x16 ico, 1406 bytes.
+    imgName = "image3.ico";
+    inMimeType = "image/x-icon";
+    imgFile = do_get_file(imgName);
+
+    istream = getFileInputStream(imgFile);
+    Assert.equal(istream.available(), 1406);
+
+    buffer = NetUtil.readInputStreamToString(istream, istream.available());
+    container = imgTools.decodeImageFromBuffer(
+      buffer,
+      buffer.length,
+      inMimeType
+    );
+
+    // It's not easy to look at the pixel values from JS, so just
+    // check the container's size.
+    Assert.equal(container.width, 16);
+    Assert.equal(container.height, 16);
+
+    /* ========== 8 ========== */
+    testnum++;
+    testdesc = "test encoding a scaled PNG"; // note that we're scaling UP
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeScaledImage(container, "image/png", 32, 32);
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image3ico32x32.png";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 2280);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 9 ========== */
+    testnum++;
+    testdesc = "test encoding an unscaled PNG";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeImage(container, "image/png");
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image3ico16x16.png";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 520);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 10 ========== */
+    testnum++;
+    testdesc = "test decoding a GIF";
+
+    // 32x32 gif, 1809 bytes.
+    imgName = "image4.gif";
+    inMimeType = "image/gif";
+    imgFile = do_get_file(imgName);
+
+    istream = getFileInputStream(imgFile);
+    Assert.equal(istream.available(), 1809);
+
+    buffer = NetUtil.readInputStreamToString(istream, istream.available());
+    container = imgTools.decodeImageFromBuffer(
+      buffer,
+      buffer.length,
+      inMimeType
+    );
+
+    // It's not easy to look at the pixel values from JS, so just
+    // check the container's size.
+    Assert.equal(container.width, 32);
+    Assert.equal(container.height, 32);
+
+    /* ========== 11 ========== */
+    testnum++;
+    testdesc =
+      "test encoding an unscaled ICO with format options " +
+      "(format=bmp;bpp=32)";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeImage(
+      container,
+      "image/vnd.microsoft.icon",
+      "format=bmp;bpp=32"
+    );
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image4gif32x32bmp32bpp.ico";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 4286);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 12 ========== */
+    testnum++;
+    testdesc =
+      // eslint-disable-next-line no-useless-concat
+      "test encoding a scaled ICO with format options " + "(format=bmp;bpp=32)";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeScaledImage(
+      container,
+      "image/vnd.microsoft.icon",
+      16,
+      16,
+      "format=bmp;bpp=32"
+    );
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image4gif16x16bmp32bpp.ico";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 1150);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 13 ========== */
+    testnum++;
+    testdesc =
+      "test encoding an unscaled ICO with format options " +
+      "(format=bmp;bpp=24)";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeImage(
+      container,
+      "image/vnd.microsoft.icon",
+      "format=bmp;bpp=24"
+    );
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image4gif32x32bmp24bpp.ico";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 3262);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 14 ========== */
+    testnum++;
+    testdesc =
+      // eslint-disable-next-line no-useless-concat
+      "test encoding a scaled ICO with format options " + "(format=bmp;bpp=24)";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeScaledImage(
+      container,
+      "image/vnd.microsoft.icon",
+      16,
+      16,
+      "format=bmp;bpp=24"
+    );
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image4gif16x16bmp24bpp.ico";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 894);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 15 ========== */
+    testnum++;
+    testdesc = "test cropping a JPG";
+
+    // 32x32 jpeg, 3494 bytes.
+    imgName = "image2.jpg";
+    inMimeType = "image/jpeg";
+    imgFile = do_get_file(imgName);
+
+    istream = getFileInputStream(imgFile);
+    Assert.equal(istream.available(), 3494);
+
+    buffer = NetUtil.readInputStreamToString(istream, istream.available());
+    container = imgTools.decodeImageFromBuffer(
+      buffer,
+      buffer.length,
+      inMimeType
+    );
+
+    // It's not easy to look at the pixel values from JS, so just
+    // check the container's size.
+    Assert.equal(container.width, 32);
+    Assert.equal(container.height, 32);
+
+    // encode a cropped image
+    istream = imgTools.encodeCroppedImage(
+      container,
+      "image/jpeg",
+      0,
+      0,
+      16,
+      16
+    );
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image2jpg16x16cropped.jpg";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 879);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 16 ========== */
+    testnum++;
+    testdesc = "test cropping a JPG with an offset";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeCroppedImage(
+      container,
+      "image/jpeg",
+      16,
+      16,
+      16,
+      16
+    );
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image2jpg16x16cropped2.jpg";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 878);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 17 ========== */
+    testnum++;
+    testdesc = "test cropping a JPG without a given height";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, 16, 0);
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image2jpg16x32cropped3.jpg";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 1127);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 18 ========== */
+    testnum++;
+    testdesc = "test cropping a JPG without a given width";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, 0, 16);
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image2jpg32x16cropped4.jpg";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 1135);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 19 ========== */
+    testnum++;
+    testdesc = "test cropping a JPG without a given width and height";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, 0, 0);
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image2jpg32x32.jpg";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 1634);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 20 ========== */
+    testnum++;
+    testdesc = "test scaling a JPG without a given width";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeScaledImage(container, "image/jpeg", 0, 16);
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image2jpg32x16scaled.jpg";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 1227);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 21 ========== */
+    testnum++;
+    testdesc = "test scaling a JPG without a given height";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeScaledImage(container, "image/jpeg", 16, 0);
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image2jpg16x32scaled.jpg";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 1219);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 22 ========== */
+    testnum++;
+    testdesc = "test scaling a JPG without a given width and height";
+
+    // we'll reuse the container from the previous test
+    istream = imgTools.encodeScaledImage(container, "image/jpeg", 0, 0);
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image2jpg32x32.jpg";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 1634);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 23 ========== */
+    testnum++;
+    testdesc = "test invalid arguments for cropping";
+
+    var numErrors = 0;
+
+    try {
+      // width/height can't be negative
+      imgTools.encodeScaledImage(container, "image/jpeg", -1, -1);
+    } catch (e) {
+      numErrors++;
+    }
+
+    try {
+      // offsets can't be negative
+      imgTools.encodeCroppedImage(container, "image/jpeg", -1, -1, 16, 16);
+    } catch (e) {
+      numErrors++;
+    }
+
+    try {
+      // width/height can't be negative
+      imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, -1, -1);
+    } catch (e) {
+      numErrors++;
+    }
+
+    try {
+      // out of bounds
+      imgTools.encodeCroppedImage(container, "image/jpeg", 17, 17, 16, 16);
+    } catch (e) {
+      numErrors++;
+    }
+
+    try {
+      // out of bounds
+      imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, 33, 33);
+    } catch (e) {
+      numErrors++;
+    }
+
+    try {
+      // out of bounds
+      imgTools.encodeCroppedImage(container, "image/jpeg", 1, 1, 0, 0);
+    } catch (e) {
+      numErrors++;
+    }
+
+    Assert.equal(numErrors, 6);
+
+    /* ========== 24 ========== */
+    testnum++;
+    testdesc = "test encoding webp";
+
+    // Load picture that we want to convert
+    imgName = "image1.png";
+    inMimeType = "image/png";
+    imgFile = do_get_file(imgName);
+
+    istream = getFileInputStream(imgFile);
+    Assert.equal(istream.available(), 8415);
+
+    buffer = NetUtil.readInputStreamToString(istream, istream.available());
+    container = imgTools.decodeImageFromBuffer(
+      buffer,
+      buffer.length,
+      inMimeType
+    );
+
+    // Convert image to webp
+    istream = imgTools.encodeImage(container, "image/webp");
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image1.webp";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 3206);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== 25 ========== */
+    testnum++;
+    testdesc = "test encoding webp with quality parameter";
+
+    // Load picture that we want to convert
+    imgName = "image1.png";
+    inMimeType = "image/png";
+    imgFile = do_get_file(imgName);
+
+    istream = getFileInputStream(imgFile);
+    Assert.equal(istream.available(), 8415);
+
+    buffer = NetUtil.readInputStreamToString(istream, istream.available());
+    container = imgTools.decodeImageFromBuffer(
+      buffer,
+      buffer.length,
+      inMimeType
+    );
+
+    // Convert image to webp
+    istream = imgTools.encodeImage(container, "image/webp", "quality=50");
+    encodedBytes = streamToArray(istream);
+
+    // Get bytes for expected result
+    refName = "image1quality50.webp";
+    refFile = do_get_file(refName);
+    istream = getFileInputStream(refFile);
+    Assert.equal(istream.available(), 1944);
+    referenceBytes = streamToArray(istream);
+
+    // compare the encoder's output to the reference file.
+    compareArrays(encodedBytes, referenceBytes);
+
+    /* ========== bug 363986 ========== */
+    testnum = 363986;
+    testdesc = "test PNG and JPEG and WEBP encoders' Read/ReadSegments methods";
+
+    var testData = [
+      {
+        preImage: "image3.ico",
+        preImageMimeType: "image/x-icon",
+        refImage: "image3ico16x16.png",
+        refImageMimeType: "image/png",
+      },
+      {
+        preImage: "image1.png",
+        preImageMimeType: "image/png",
+        refImage: "image1png64x64.jpg",
+        refImageMimeType: "image/jpeg",
+      },
+      {
+        preImage: "image1.png",
+        preImageMimeType: "image/png",
+        refImage: "image1.webp",
+        refImageMimeType: "image/webp",
+      },
+    ];
+
+    for (var i = 0; i < testData.length; ++i) {
+      var dict = testData[i];
+
+      imgFile = do_get_file(dict.refImage);
+      istream = getFileInputStream(imgFile);
+      var refBytes = streamToArray(istream);
+
+      imgFile = do_get_file(dict.preImage);
+      istream = getFileInputStream(imgFile);
+
+      buffer = NetUtil.readInputStreamToString(istream, istream.available());
+      container = imgTools.decodeImageFromBuffer(
+        buffer,
+        buffer.length,
+        dict.preImageMimeType
+      );
+
+      istream = imgTools.encodeImage(container, dict.refImageMimeType);
+
+      var sstream = Cc["@mozilla.org/storagestream;1"].createInstance(
+        Ci.nsIStorageStream
+      );
+      sstream.init(4096, 4294967295, null);
+      var ostream = sstream.getOutputStream(0);
+      var bostream = Cc[
+        "@mozilla.org/network/buffered-output-stream;1"
+      ].createInstance(Ci.nsIBufferedOutputStream);
+
+      // use a tiny buffer to make sure the image data doesn't fully fit in it
+      bostream.init(ostream, 8);
+
+      bostream.writeFrom(istream, istream.available());
+      bostream.flush();
+      bostream.close();
+
+      var encBytes = streamToArray(sstream.newInputStream(0));
+
+      compareArrays(refBytes, encBytes);
+    }
+
+    /* ========== bug 413512  ========== */
+    testnum = 413512;
+    testdesc = "test decoding bad favicon (bug 413512)";
+
+    imgName = "bug413512.ico";
+    inMimeType = "image/x-icon";
+    imgFile = do_get_file(imgName);
+
+    istream = getFileInputStream(imgFile);
+    Assert.equal(istream.available(), 17759);
+    var errsrc = "none";
+
+    try {
+      buffer = NetUtil.readInputStreamToString(istream, istream.available());
+      container = imgTools.decodeImageFromBuffer(
+        buffer,
+        buffer.length,
+        inMimeType
+      );
+
+      // We expect to hit an error during encoding because the ICO header of the
+      // image is fine, but the actual resources are corrupt. Since
+      // decodeImageFromBuffer() only performs a metadata decode, it doesn't decode
+      // far enough to realize this, but we'll find out when we do a full decode
+      // during encodeImage().
+      try {
+        istream = imgTools.encodeImage(container, "image/png");
+      } catch (e) {
+        err = e;
+        errsrc = "encode";
+      }
+    } catch (e) {
+      err = e;
+      errsrc = "decode";
+    }
+
+    Assert.equal(errsrc, "encode");
+    checkExpectedError(/NS_ERROR_FAILURE/, err);
+
+    /* ========== bug 815359  ========== */
+    testnum = 815359;
+    testdesc = "test correct ico hotspots (bug 815359)";
+
+    imgName = "bug815359.ico";
+    inMimeType = "image/x-icon";
+    imgFile = do_get_file(imgName);
+
+    istream = getFileInputStream(imgFile);
+    Assert.equal(istream.available(), 4286);
+
+    buffer = NetUtil.readInputStreamToString(istream, istream.available());
+    container = imgTools.decodeImageFromBuffer(
+      buffer,
+      buffer.length,
+      inMimeType
+    );
+
+    Assert.equal(container.hotspotX, 10);
+    Assert.equal(container.hotspotY, 9);
+
+    /* ========== end ========== */
+  } catch (e) {
+    throw new Error(
+      "FAILED in test #" + testnum + " -- " + testdesc + ": " + e
+    );
+  }
+}
diff --git a/image/test/unit/test_moz_icon_uri.js b/image/test/unit/test_moz_icon_uri.js
new file mode 100644
index 0000000000..0111d71d2a
--- /dev/null
+++ b/image/test/unit/test_moz_icon_uri.js
@@ -0,0 +1,157 @@
+/*
+ * Test icon URI functionality
+ *
+ */
+
+// There are 3 types of valid icon URIs:
+// 1. moz-icon:[valid URL]
+// 2. moz-icon://[file name]
+// 3. moz-icon://stock/[icon identifier]
+// Plus we also support moz-icon://[valid URL] for backwards compatibility.
+
+// Main test entry point.
+
+function run_test() {
+  let ioService = Services.io;
+  let currentSpec = ""; // the uri spec that we're currently testing
+  let exception = false; // whether or not an exception was thrown
+  let uri = null; // the current URI
+  let iconURI = null; // the current icon URI
+
+  // Note that if the scheme is not correct the ioservice won't even create an icon URI
+  // so don't bother testing incorrect schemes here.
+
+  // Make sure a valid file name icon URI can be created and that we can obtain
+  // all arguments, the spec, and the file extension.
+  currentSpec = "moz-icon://foo.html?contentType=bar&size=button&state=normal";
+  try {
+    uri = ioService.newURI(currentSpec);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, false);
+  exception = false; // reset exception value
+
+  iconURI = uri.QueryInterface(Ci.nsIMozIconURI);
+  Assert.equal(iconURI.iconSize, "button");
+  Assert.equal(iconURI.iconState, "normal");
+  Assert.equal(iconURI.contentType, "bar");
+  Assert.equal(iconURI.fileExtension, ".html");
+
+  // Make sure a valid file name icon URI can be created with a numeric size,
+  // and make sure the numeric size is handled properly
+  currentSpec = "moz-icon://foo.html?size=3";
+  try {
+    uri = ioService.newURI(currentSpec);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, false);
+  exception = false; // reset exception value
+
+  iconURI = uri.QueryInterface(Ci.nsIMozIconURI);
+  Assert.equal(iconURI.iconSize, "");
+  Assert.equal(iconURI.imageSize, 3);
+
+  // Make sure a valid stock icon URI can be created and that we can obtain
+  // the stock icon's name.
+  currentSpec = "moz-icon://stock/foo";
+  try {
+    uri = ioService.newURI(currentSpec);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, false);
+  exception = false; // reset exception value
+
+  iconURI = uri.QueryInterface(Ci.nsIMozIconURI);
+  Assert.equal(iconURI.stockIcon, "foo");
+
+  // Make sure an invalid stock icon URI, missing icon identifier, throws.
+  currentSpec = "moz-icon://stock/?size=3";
+  try {
+    uri = ioService.newURI(currentSpec);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.ok(exception);
+  exception = false; // reset exception value
+
+  // Make sure a valid file URL icon URI can be created and that we can obtain
+  // the URL and QI it to an nsIFileURL.
+  currentSpec = "moz-icon:file://foo.txt";
+  try {
+    uri = ioService.newURI(currentSpec);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, false);
+  exception = false; // reset exception value
+
+  iconURI = uri.QueryInterface(Ci.nsIMozIconURI);
+  let fileURL = null;
+  try {
+    fileURL = iconURI.iconURL.QueryInterface(Ci.nsIFileURL);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, false);
+  exception = false; // reset exception value
+
+  Assert.notEqual(fileURL, null);
+
+  // Now test a file URI which has been created with an extra //
+  currentSpec = "moz-icon://file://foo.txt";
+  try {
+    uri = ioService.newURI(currentSpec);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, false);
+  exception = false; // reset exception value
+
+  iconURI = uri.QueryInterface(Ci.nsIMozIconURI);
+  fileURL = null;
+  try {
+    fileURL = iconURI.iconURL.QueryInterface(Ci.nsIFileURL);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, false);
+  exception = false; // reset exception value
+
+  Assert.notEqual(fileURL, null);
+
+  // Now test a simple invalid icon URI. This should fail.
+  currentSpec = "moz-icon:foo";
+  try {
+    uri = ioService.newURI(currentSpec);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, true);
+  exception = false; // reset exception value
+
+  // Now test an icon URI that has a URI for a path but that is not a URL. This should fail.
+  // This is png data for a little red dot that I got from wikipedia.
+  currentSpec =
+    "moz-icon:data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9YGARc5KB0XV+IAAAAddEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIFRoZSBHSU1Q72QlbgAAAF1JREFUGNO9zL0NglAAxPEfdLTs4BZM4DIO4C7OwQg2JoQ9LE1exdlYvBBeZ7jqch9//q1uH4TLzw4d6+ErXMMcXuHWxId3KOETnnXXV6MJpcq2MLaI97CER3N0vr4MkhoXe0rZigAAAABJRU5ErkJggg==";
+  try {
+    uri = ioService.newURI(currentSpec);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, true);
+  exception = false; // reset exception value
+
+  // Now test a URI that should be a file name but is ridiculously long. This should fail.
+  currentSpec =
+    "moz-icon://data:application/vnd.ms-excel;base64,<xml version="1.0" encoding="utf-8"><ss:Workbook xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:o="urn:schemas-microsoft-com:office:office"><o:DocumentProperties><o:Title>Array Grid</o:Title></o:DocumentProperties><ss:ExcelWorkbook><ss:WindowHeight>9000</ss:WindowHeight><ss:WindowWidth>17480</ss:WindowWidth><ss:ProtectStructure>False</ss:ProtectStructure><ss:ProtectWindows>False</ss:ProtectWindows></ss:ExcelWorkbook><ss:Styles><ss:Style ss:ID="Default"><ss:Alignment ss:Vertical="Top" ss:WrapText="1" /><ss:Font ss:FontName="arial" ss:Size="10" /><ss:Borders><ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Top" /><ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Bottom" /><ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Left" /><ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Right" /></ss:Borders><ss:Interior /><ss:NumberFormat /><ss:Protection /></ss:Style><ss:Style ss:ID="title"><ss:Borders /><ss:Font /><ss:Alignment ss:WrapText="1" ss:Vertical="Center" ss:Horizontal="Center" /><ss:NumberFormat ss:Format="@" /></ss:Style><ss:Style ss:ID="headercell"><ss:Font ss:Bold="1" ss:Size="10" /><ss:Alignment ss:WrapText="1" ss:Horizontal="Center" /><ss:Interior ss:Pattern="Solid" ss:Color="#A3C9F1" /></ss:Style><ss:Style ss:ID="even"><ss:Interior ss:Pattern="Solid" ss:Color="#CCFFFF" /></ss:Style><ss:Style ss:Parent="even" ss:ID="evendate"><ss:NumberFormat ss:Format="yyyy-mm-dd" /></ss:Style><ss:Style ss:Parent="even" ss:ID="evenint"><ss:NumberFormat ss:Format="0" /></ss:Style><ss:Style ss:Parent="even" ss:ID="evenfloat"><ss:NumberFormat ss:Format="0.000" /></ss:Style><ss:Style ss:ID="odd"><ss:Interior ss:Pattern="Solid" ss:Color="#CCCCFF" /></ss:Style><ss:Style ss:Parent="odd" ss:ID="odddate"><ss:NumberFormat ss:Format="yyyy-mm-dd" /></ss:Style><ss:Style ss:Parent="odd" ss:ID="oddint"><ss:NumberFormat ss:Format="0" /></ss:Style><ss:Style ss:Parent="odd" ss:ID="oddfloat"><ss:NumberFormat ss:Format="0.000" /></ss:Style></ss:Styles><ss:Worksheet ss:Name="Array Grid"><ss:Names><ss:NamedRange ss:Name="Print_Titles" ss:RefersTo="='Array Grid'!R1:R2" /></ss:Names><ss:Table x:FullRows="1" x:FullColumns="1" ss:ExpandedColumnCount="5" ss:ExpandedRowCount="31"><ss:Column ss:AutoFitWidth="1" ss:Width="271" /><ss:Column ss:AutoFitWidth="1" ss:Width="75" /><ss:Column ss:AutoFitWidth="1" ss:Width="75" /><ss:Column ss:AutoFitWidth="1" ss:Width="75" /><ss:Column ss:AutoFitWidth="1" ss:Width="85" /><ss:Row ss:Height="38"><ss:Cell ss:StyleID="title" ss:MergeAcross="4"><ss:Data xmlns:html="http://www.w3.org/TR/REC-html40" ss:Type="String"><html:B> (c)2008 SEBN UA</html:B></ss:Data><ss:NamedCell ss:Name="Print_Titles" /></ss:Cell></ss:Row><ss:Row ss:AutoFitHeight="1"><ss:Cell ss:StyleID="headercell"><ss:Data ss:Type="String">Company</ss:Data><ss:NamedCell ss:Name="Print_Titles" /></ss:Cell><ss:Cell ss:StyleID="headercell"><ss:Data ss:Type="String">Price</ss:Data><ss:NamedCell ss:Name="Print_Titles" /></ss:Cell><ss:Cell ss:StyleID="headercell"><ss:Data ss:Type="String">Change</ss:Data><ss:NamedCell ss:Name="Print_Titles" /></ss:Cell><ss:Cell ss:StyleID="headercell"><ss:Data ss:Type="String">% Change</ss:Data><ss:NamedCell ss:Name="Print_Titles" /></ss:Cell><ss:Cell ss:StyleID="headercell"><ss:Data ss:Type="String">Last Updated</ss:Data><ss:NamedCell ss:Name="Print_Titles" /></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">3m Co</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">71.72</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.02</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.03</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">AT&T Inc.</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">31.61</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">-0.48</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">-1.54</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Alcoa Inc</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">29.01</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.42</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">1.47</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Altria Group Inc</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">83.81</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.28</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.34</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">American Express Company</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">52.55</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.01</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.02</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">American International Group, Inc.</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">64.13</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.31</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.49</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Boeing Co.</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">75.43</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.53</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.71</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Caterpillar Inc.</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">67.27</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.92</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">1.39</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Citigroup, Inc.</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">49.37</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.02</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.04</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">E.I. du Pont de Nemours and Company</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">40.48</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.51</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">1.28</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Exxon Mobil Corp</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">68.1</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">-0.43</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">-0.64</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">General Electric Company</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">34.14</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">-0.08</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">-0.23</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">General Motors Corporation</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">30.27</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">1.09</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">3.74</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Hewlett-Packard Co.</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">36.53</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">-0.03</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">-0.08</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Honeywell Intl Inc</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">38.77</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.05</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.13</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Intel Corporation</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">19.88</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.31</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">1.58</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">International Business Machines</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">81.41</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.44</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.54</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">JP Morgan & Chase & Co</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">45.73</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.07</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.15</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Johnson & Johnson</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">64.72</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.06</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.09</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">McDonald's Corporation</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">36.76</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.86</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">2.4</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Merck & Co., Inc.</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">40.96</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.41</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">1.01</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Microsoft Corporation</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">25.84</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.14</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.54</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Pfizer Inc</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">27.96</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.4</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">1.45</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">The Coca-Cola Company</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">45.07</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.26</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.58</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">The Home Depot, Inc.</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">34.64</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.35</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">1.02</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">The Procter & Gamble Company</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">61.91</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.01</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.02</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">United Technologies Corporation</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">63.26</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.55</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.88</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Verizon Communications</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">35.57</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">0.39</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">1.11</ss:Data></ss:Cell><ss:Cell ss:StyleID="odd"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row><ss:Row><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wal-Mart Stores, Inc.</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">45.45</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">0.73</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">1.63</ss:Data></ss:Cell><ss:Cell ss:StyleID="even"><ss:Data ss:Type="String">Wed Sep 01 2010 00:00:00 GMT+1000 (EST)</ss:Data></ss:Cell></ss:Row></ss:Table><x:WorksheetOptions><x:PageSetup><x:Layout x:CenterHorizontal="1" x:Orientation="Landscape" /><x:Footer x:Data="Page &amp;P of &amp;N" x:Margin="0.5" /><x:PageMargins x:Top="0.5" x:Right="0.5" x:Left="0.5" x:Bottom="0.8" /></x:PageSetup><x:FitToPage /><x:Print><x:PrintErrors>Blank</x:PrintErrors><x:FitWidth>1</x:FitWidth><x:FitHeight>32767</x:FitHeight><x:ValidPrinterInfo /><x:VerticalResolution>600</x:VerticalResolution></x:Print><x:Selected /><x:DoNotDisplayGridlines /><x:ProtectObjects>False</x:ProtectObjects><x:ProtectScenarios>False</x:ProtectScenarios></x:WorksheetOptions></ss:Worksheet></ss:Workbook>";
+  try {
+    uri = ioService.newURI(currentSpec);
+  } catch (e) {
+    exception = true;
+  }
+  Assert.equal(exception, true);
+  exception = false; // reset exception value
+}
diff --git a/image/test/unit/test_private_channel.js b/image/test/unit/test_private_channel.js
new file mode 100644
index 0000000000..008f6aad92
--- /dev/null
+++ b/image/test/unit/test_private_channel.js
@@ -0,0 +1,166 @@
+const { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
+const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
+
+const ReferrerInfo = Components.Constructor(
+  "@mozilla.org/referrer-info;1",
+  "nsIReferrerInfo",
+  "init"
+);
+
+var server = new HttpServer();
+server.registerPathHandler("/image.png", imageHandler);
+server.start(-1);
+
+/* import-globals-from image_load_helpers.js */
+load("image_load_helpers.js");
+
+var gHits = 0;
+
+var gIoService = Services.io;
+var gPublicLoader = Cc["@mozilla.org/image/loader;1"].createInstance(
+  Ci.imgILoader
+);
+var gPrivateLoader = Cc["@mozilla.org/image/loader;1"].createInstance(
+  Ci.imgILoader
+);
+gPrivateLoader.QueryInterface(Ci.imgICache).respectPrivacyNotifications();
+
+var nonPrivateLoadContext = Cu.createLoadContext();
+var privateLoadContext = Cu.createPrivateLoadContext();
+
+function imageHandler(metadata, response) {
+  gHits++;
+  response.setHeader("Cache-Control", "max-age=10000", false);
+  response.setStatusLine(metadata.httpVersion, 200, "OK");
+  response.setHeader("Content-Type", "image/png", false);
+  var body = atob(
+    "iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAAEUlEQVQImWP4z8AAQTAamQkAhpcI+DeMzFcAAAAASUVORK5CYII="
+  );
+  response.bodyOutputStream.write(body, body.length);
+}
+
+var requests = [];
+var listeners = [];
+
+var gImgPath = "http://localhost:" + server.identity.primaryPort + "/image.png";
+
+function setup_chan(path, isPrivate, callback) {
+  var uri = NetUtil.newURI(gImgPath);
+  var securityFlags = Ci.nsILoadInfo.SEC_ALLOW_CROSS_ORIGIN_SEC_CONTEXT_IS_NULL;
+  var principal = Services.scriptSecurityManager.createContentPrincipal(uri, {
+    privateBrowsingId: isPrivate ? 1 : 0,
+  });
+  var chan = NetUtil.newChannel({
+    uri,
+    loadingPrincipal: principal,
+    securityFlags,
+    contentPolicyType: Ci.nsIContentPolicy.TYPE_INTERNAL_IMAGE,
+  });
+  chan.notificationCallbacks = isPrivate
+    ? privateLoadContext
+    : nonPrivateLoadContext;
+  var channelListener = new ChannelListener();
+  chan.asyncOpen(channelListener);
+
+  var listener = new ImageListener(null, callback);
+  var outlistener = {};
+  var loader = isPrivate ? gPrivateLoader : gPublicLoader;
+  var outer = Cc["@mozilla.org/image/tools;1"]
+    .getService(Ci.imgITools)
+    .createScriptedObserver(listener);
+  listeners.push(outer);
+  requests.push(
+    loader.loadImageWithChannelXPCOM(chan, outer, null, outlistener)
+  );
+  channelListener.outputListener = outlistener.value;
+  listener.synchronous = false;
+}
+
+function loadImage(isPrivate, callback) {
+  var listener = new ImageListener(null, callback);
+  var outer = Cc["@mozilla.org/image/tools;1"]
+    .getService(Ci.imgITools)
+    .createScriptedObserver(listener);
+  var uri = gIoService.newURI(gImgPath);
+  var loadGroup = Cc["@mozilla.org/network/load-group;1"].createInstance(
+    Ci.nsILoadGroup
+  );
+  loadGroup.notificationCallbacks = isPrivate
+    ? privateLoadContext
+    : nonPrivateLoadContext;
+  var loader = isPrivate ? gPrivateLoader : gPublicLoader;
+  var referrerInfo = new ReferrerInfo(
+    Ci.nsIReferrerInfo.NO_REFERRER_WHEN_DOWNGRADE,
+    true,
+    null
+  );
+  requests.push(
+    loader.loadImageXPCOM(
+      uri,
+      null,
+      referrerInfo,
+      null,
+      loadGroup,
+      outer,
+      null,
+      0,
+      null
+    )
+  );
+  listener.synchronous = false;
+}
+
+function run_loadImage_tests() {
+  function observer() {
+    Services.obs.removeObserver(observer, "cacheservice:empty-cache");
+    gHits = 0;
+    loadImage(false, function () {
+      loadImage(false, function () {
+        loadImage(true, function () {
+          loadImage(true, function () {
+            Assert.equal(gHits, 2);
+            server.stop(do_test_finished);
+          });
+        });
+      });
+    });
+  }
+
+  for (let loader of [gPublicLoader, gPrivateLoader]) {
+    loader.QueryInterface(Ci.imgICache).clearCache(true);
+    loader.QueryInterface(Ci.imgICache).clearCache(false);
+  }
+  Services.obs.addObserver(observer, "cacheservice:empty-cache");
+  let cs = Services.cache2;
+  cs.clear();
+}
+
+function cleanup() {
+  for (var i = 0; i < requests.length; ++i) {
+    requests[i].cancelAndForgetObserver(0);
+  }
+}
+
+function run_test() {
+  registerCleanupFunction(cleanup);
+
+  do_test_pending();
+
+  Services.prefs.setBoolPref("network.http.rcwn.enabled", false);
+
+  // We create a public channel that loads an image, then an identical
+  // one that should cause a cache read. We then create a private channel
+  // and load the same image, and do that a second time to ensure a cache
+  // read. In total, we should cause two separate http responses to occur,
+  // since the private channels shouldn't be able to use the public cache.
+  setup_chan("/image.png", false, function () {
+    setup_chan("/image.png", false, function () {
+      setup_chan("/image.png", true, function () {
+        setup_chan("/image.png", true, function () {
+          Assert.equal(gHits, 2);
+          run_loadImage_tests();
+        });
+      });
+    });
+  });
+}
diff --git a/image/test/unit/xpcshell.ini b/image/test/unit/xpcshell.ini
new file mode 100644
index 0000000000..7ce8a02e1e
--- /dev/null
+++ b/image/test/unit/xpcshell.ini
@@ -0,0 +1,42 @@
+[DEFAULT]
+head =
+support-files =
+  async_load_tests.js
+  bug413512.ico
+  bug815359.ico
+  image1.png
+  image1.webp
+  image1quality50.webp
+  image1png16x16.jpg
+  image1png64x64.jpg
+  image2.jpg
+  image2jpg16x16-win.png
+  image2jpg16x16.png
+  image2jpg16x16cropped.jpg
+  image2jpg16x16cropped2.jpg
+  image2jpg16x32cropped3.jpg
+  image2jpg16x32scaled.jpg
+  image2jpg32x16cropped4.jpg
+  image2jpg32x16scaled.jpg
+  image2jpg32x32-win.png
+  image2jpg32x32.jpg
+  image2jpg32x32.png
+  image3.ico
+  image3ico16x16.png
+  image3ico32x32.png
+  image4.gif
+  image4gif16x16bmp24bpp.ico
+  image4gif16x16bmp32bpp.ico
+  image4gif32x32bmp24bpp.ico
+  image4gif32x32bmp32bpp.ico
+  image_load_helpers.js
+
+
+[test_async_notification.js]
+[test_async_notification_404.js]
+[test_async_notification_animated.js]
+[test_encoder_apng.js]
+[test_encoder_png.js]
+[test_imgtools.js]
+[test_moz_icon_uri.js]
+[test_private_channel.js]