diff --git a/layout/reftests/forms/placeholder/placeholder-15.html b/layout/reftests/forms/placeholder/placeholder-15.html
new file mode 100644
index 00000000000..d36531bf2e1
--- /dev/null
+++ b/layout/reftests/forms/placeholder/placeholder-15.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <!-- Test: when focused, element should show placeholder. -->
+  <script type="text/javascript">
+    function focusPlaceholder()
+    {
+      document.getElementById('p1').focus();
+    }
+    function disableReftestWait()
+    {
+      document.documentElement.className = '';
+    }
+  </script>
+
+  <body onload="focusPlaceholder();">
+    <input type="text" id="p1" value="" placeholder="my placeholder" onfocus="disableReftestWait();">
+  </body>
+</html>
diff --git a/layout/reftests/forms/placeholder/placeholder-16.html b/layout/reftests/forms/placeholder/placeholder-16.html
new file mode 100644
index 00000000000..0854875355d
--- /dev/null
+++ b/layout/reftests/forms/placeholder/placeholder-16.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <!-- Test: when focused, placeholder update shouldn't show placeholder. -->
+  <script type="text/javascript">
+    function focusPlaceholder()
+    {
+      document.getElementById('p1').focus();
+    }
+    function setPlaceholder()
+    {
+      document.getElementById('p1').placeholder = 'new placeholder';
+    }
+    function disableReftestWait()
+    {
+      document.documentElement.className = '';
+    }
+  </script>
+
+  <body onload="focusPlaceholder();">
+    <input type="text" id="p1" value="" placeholder="my placeholder" onfocus="setPlaceholder(); disableReftestWait();">
+  </body>
+</html>
diff --git a/layout/reftests/forms/placeholder/placeholder-17.html b/layout/reftests/forms/placeholder/placeholder-17.html
new file mode 100644
index 00000000000..7d5f75aebfe
--- /dev/null
+++ b/layout/reftests/forms/placeholder/placeholder-17.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <!-- Test: when focused, value reset shouldn't show placeholder. -->
+  <script type="text/javascript">
+    function focusPlaceholder()
+    {
+      document.getElementById('p1').focus();
+    }
+    function resetValue()
+    {
+      document.getElementById('p1').value = '';
+    }
+    function disableReftestWait()
+    {
+      document.documentElement.className = '';
+    }
+  </script>
+
+  <body onload="focusPlaceholder();">
+    <input type="text" id="p1" value="my value" placeholder="my placeholder" onfocus="resetValue(); disableReftestWait();">
+  </body>
+</html>
diff --git a/layout/reftests/forms/placeholder/placeholder-7.html b/layout/reftests/forms/placeholder/placeholder-7.html
index 5e6da2c50f2..03c6da527fb 100644
--- a/layout/reftests/forms/placeholder/placeholder-7.html
+++ b/layout/reftests/forms/placeholder/placeholder-7.html
@@ -1,7 +1,6 @@
 <!DOCTYPE html>
 <html class="reftest-wait">
-  <!-- Test: when focused, element should show placeholder
-       Using a readonly input text to disable caret -->
+  <!-- Test: when focused, element should show placeholder. -->
   <script type="text/javascript">
     function focusPlaceholder()
     {
diff --git a/layout/reftests/forms/placeholder/placeholder-8.html b/layout/reftests/forms/placeholder/placeholder-8.html
index 8b76d512507..1714d3367a9 100644
--- a/layout/reftests/forms/placeholder/placeholder-8.html
+++ b/layout/reftests/forms/placeholder/placeholder-8.html
@@ -1,7 +1,6 @@
 <!DOCTYPE html>
 <html class="reftest-wait">
-  <!-- Test: when focused, placeholder update shouldn't show placeholder
-       Using a readonly input text to disable caret -->
+  <!-- Test: when focused, placeholder update shouldn't show placeholder. -->
   <script type="text/javascript">
     function focusPlaceholder()
     {
diff --git a/layout/reftests/forms/placeholder/placeholder-9.html b/layout/reftests/forms/placeholder/placeholder-9.html
index c82954a594c..426e6ea14fd 100644
--- a/layout/reftests/forms/placeholder/placeholder-9.html
+++ b/layout/reftests/forms/placeholder/placeholder-9.html
@@ -1,7 +1,6 @@
 <!DOCTYPE html>
 <html class="reftest-wait">
-  <!-- Test: when focused, value reset shouldn't show placeholder
-       Using a readonly input text to disable caret -->
+  <!-- Test: when focused, value reset shouldn't show placeholder. -->
   <script type="text/javascript">
     function focusPlaceholder()
     {
diff --git a/layout/reftests/forms/placeholder/placeholder-focus-ref.html b/layout/reftests/forms/placeholder/placeholder-focus-ref.html
index a7236d5aa18..115ffac79e7 100644
--- a/layout/reftests/forms/placeholder/placeholder-focus-ref.html
+++ b/layout/reftests/forms/placeholder/placeholder-focus-ref.html
@@ -1,6 +1,5 @@
 <!DOCTYPE html>
 <html class="reftest-wait">
-  <!-- Using a readonly input text to disable caret -->
   <script type="text/javascript">
     function focusInput()
     {
@@ -12,6 +11,6 @@
     }
   </script>
   <body onload="focusInput();">
-    <input id='t1' type="text" readonly onfocus="disableReftestWait();">
+    <input id='t1' type="text" onfocus="disableReftestWait();">
   </body>
 </html>
diff --git a/layout/reftests/forms/placeholder/placeholder-readonly-focus-ref.html b/layout/reftests/forms/placeholder/placeholder-readonly-focus-ref.html
new file mode 100644
index 00000000000..ec0d6d793ac
--- /dev/null
+++ b/layout/reftests/forms/placeholder/placeholder-readonly-focus-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <script type="text/javascript">
+    function focusInput()
+    {
+      document.getElementById('t1').focus();
+    }
+    function disableReftestWait()
+    {
+      document.documentElement.className = '';
+    }
+  </script>
+  <body onload="focusInput();">
+    <input id='t1' type="text" readonly onfocus="disableReftestWait();">
+  </body>
+</html>
diff --git a/layout/reftests/forms/placeholder/reftest.list b/layout/reftests/forms/placeholder/reftest.list
index 96c3a33693e..5d45a28b540 100644
--- a/layout/reftests/forms/placeholder/reftest.list
+++ b/layout/reftests/forms/placeholder/reftest.list
@@ -7,11 +7,14 @@
 == placeholder-5.html placeholder-visible-ref.html
 == placeholder-6.html placeholder-overflow-ref.html
 == placeholder-6-textarea.html placeholder-overflow-textarea-ref.html
-== placeholder-7.html placeholder-focus-ref.html
-== placeholder-8.html placeholder-focus-ref.html
-== placeholder-9.html placeholder-focus-ref.html
+== placeholder-7.html placeholder-readonly-focus-ref.html
+== placeholder-8.html placeholder-readonly-focus-ref.html
+== placeholder-9.html placeholder-readonly-focus-ref.html
 == placeholder-10.html placeholder-visible-ref.html
 == placeholder-11.html placeholder-visible-ref.html
 == placeholder-12.html placeholder-visible-ref.html
 == placeholder-13.html placeholder-visible-ref.html
 == placeholder-14.html placeholder-visible-ref.html
+== placeholder-15.html placeholder-focus-ref.html
+== placeholder-16.html placeholder-focus-ref.html
+== placeholder-17.html placeholder-focus-ref.html
