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diff --git a/dom/events/test/test_clickevent_on_input.html b/dom/events/test/test_clickevent_on_input.html
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+++ b/dom/events/test/test_clickevent_on_input.html
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+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test click event on input</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<p id="display">
+<input id="input"
+  style="position: absolute; top: 5px; left: 5px; border: solid 15px blue; width: 100px; height: 20px;"
+  onclick="gClickCount++;">
+</p>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+var gClickCount = 0;
+
+SimpleTest.waitForExplicitFinish();
+SimpleTest.waitForFocus(runTests);
+
+var input = document.getElementById("input");
+
+function runTests()
+{
+  for (var i = 0; i < 3; i++) {
+    doTest(i);
+  }
+
+  // Re-test left clicking when the input element has some text. 
+  gClickCount = 0;
+  input.value = "Long text Long text Long text Long text Long text Long text";
+  doTest(0);
+
+  input.style.display = "none";
+  SimpleTest.finish();
+}
+
+function isEnabledMiddleClickPaste()
+{
+  try {
+    return SpecialPowers.getBoolPref("middlemouse.paste");
+  } catch (e) {
+    return false;
+  }
+}
+
+function isEnabledAccessibleCaret()
+{
+  try {
+    return SpecialPowers.getBoolPref("layout.accessiblecaret.enabled");
+  } catch (e) {
+    return false;
+  }
+}
+
+function doTest(aButton)
+{
+  // NOTE #1: Right click causes a context menu to popup, then, the click event
+  //          isn't generated.
+  // NOTE #2: If middle click causes text to be pasted, then, the click event
+  //          isn't generated.
+  // NOTE #3: If touch caret is enabled, touch caret would ovelap input element,
+  //          then, the click event isn't generated.
+  if (aButton != 2 &&
+      (aButton != 1 || !isEnabledMiddleClickPaste()) &&
+      (aButton != 0 || !isEnabledAccessibleCaret())) {
+    gClickCount = 0;
+    // click on border of input
+    synthesizeMouse(input, 5, 5, { button: aButton });
+    is(gClickCount, 1,
+       "click event doesn't fired on input element (button is " +
+         aButton + ")");
+
+    gClickCount = 0;
+    // down on border
+    synthesizeMouse(input, 5, 5, { type: "mousedown", button: aButton });
+    // up on anonymous div of input
+    synthesizeMouse(input, 20, 20, { type: "mouseup", button: aButton });
+    is(gClickCount, 1,
+       "click event doesn't fired on input element (button is " +
+         aButton + ")");
+
+    gClickCount = 0;
+    // down on anonymous div of input
+    synthesizeMouse(input, 20, 20, { type: "mousedown", button: aButton });
+    // up on border
+    synthesizeMouse(input, 5, 5, { type: "mouseup", button: aButton });
+    is(gClickCount, 1,
+       "click event doesn't fired on input element (button is " +
+         aButton + ")");
+  }
+
+  gClickCount = 0;
+  // down on outside of input
+  synthesizeMouse(input, -3, -3, { type: "mousedown", button: aButton });
+  // up on border
+  synthesizeMouse(input, 5, 5, { type: "mouseup", button: aButton });
+  is(gClickCount, 0,
+     "click event is fired on input element unexpectedly (button is " +
+       aButton + ")");
+}
+
+</script>
+</pre>
+</body>
+</html>