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diff --git a/dom/manifest/test/test_ImageObjectProcessor_type.html b/dom/manifest/test/test_ImageObjectProcessor_type.html
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index 000000000..d1b95044d
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+++ b/dom/manifest/test/test_ImageObjectProcessor_type.html
@@ -0,0 +1,57 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1079453
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1079453</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script src="common.js"></script>
+  <script>
+/**
+ * Image object's type property
+ * https://w3c.github.io/manifest/#type-member
+ **/
+
+'use strict';
+var testIcon = {
+  icons: [{
+    src: 'test',
+    type: undefined
+  }]
+};
+
+var invalidMimeTypes = [
+  'application / text',
+  'test;test',
+  ';test?test',
+  'application\\text',
+  'image/jpeg, image/gif'
+];
+invalidMimeTypes.forEach((invalidMime) => {
+  var expected = `Expect invalid mime to be treated like undefined.`;
+  testIcon.icons[0].type = invalidMime;
+  data.jsonText = JSON.stringify(testIcon);
+  var result = processor.process(data);
+  is(result.icons[0].type, undefined, expected);
+});
+
+var validTypes = [
+  'image/jpeg',
+  'IMAGE/jPeG',
+  `${whiteSpace}image/jpeg${whiteSpace}`,
+  'image/JPEG; whatever=something',
+  'image/JPEG;whatever'
+];
+
+validTypes.forEach((validMime) => {
+  var expected = `Expect valid mime to be parsed to : image/jpeg.`;
+  testIcon.icons[0].type = validMime;
+  data.jsonText = JSON.stringify(testIcon);
+  var result = processor.process(data);
+  is(result.icons[0].type, 'image/jpeg', expected);
+});
+  </script>
+</head>