Changing the theme internal name so it actually works in the nightlies.

toolkit/skin/mac/contents.rdf

@@ -1 +1 @@
-<?xml version="1.0"?>

<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
         xmlns:chrome="http://www.mozilla.org/rdf/chrome#">

  <!-- List all the skins being supplied by this theme -->
  <RDF:Seq about="urn:mozilla:skin:root">
    <RDF:li resource="urn:mozilla:skin:pinstripe3" />
  </RDF:Seq>

  <!-- pinstripe Information -->
  <RDF:Description about="urn:mozilla:skin:pinstripe3"
        chrome:displayName="Pinstripe3"
        chrome:accessKey="P"
        chrome:author="Kevin Gerich (webmail@kmgerich.com)"
        chrome:description="Mac OS X theme."
        chrome:name="pinstripe3"
        chrome:image="preview.gif">
    <chrome:packages>
      <RDF:Seq about="urn:mozilla:skin:pinstripe3:packages">
        <RDF:li resource="urn:mozilla:skin:pinstripe3:global"/>
      </RDF:Seq>
    </chrome:packages>
  </RDF:Description>

  <!-- Version Information.  State that we work only with major version 1 of this
       package. -->
  </RDF:Seq>
:global"
    chrome:skinVersion="1.5"/>
</RDF:RDF>
+<?xml version="1.0"?>

<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
         xmlns:chrome="http://www.mozilla.org/rdf/chrome#">

  <!-- List all the skins being supplied by this theme -->
  <RDF:Seq about="urn:mozilla:skin:root">
    <RDF:li resource="urn:mozilla:skin:  </RDF:Seq>
pinstripe3" />
  </RDF:Seq>

  <!-- pinstripe Information -->
  <RDF:Description about="urn:mozilla:skin:classic/1.0"
        chrome:displayName="Mozilla Firebird Default"
        chrome:accessKey="P"
        chrome:author="Kevin Gerich (webmail@kmgerich.com)"
        chrome:description="Mac OS X theme."
        chrome:name="classic/1.0"
        chrome:image="preview.gif">
    <chrome:packages>
      <RDF:Seq about="urn:mozilla:skin:classic/1.0:packages">
        <RDF:li resource="urn:mozilla:skin:classic/1.0:global"/>
      </RDF:Seq>
    </chrome:packages>
  </RDF:Description>

  <!-- Version Information.  State that we work only with major version 1 of this
       package. -->
  </RDF:Seq>
        chrome:accessKey="P"
:global"
    chrome:skinVersion="1.5"/>
</RDF:RDF>

toolkit/skin/mac/info/contents.rdf

@@ -5,29 +5,29 @@
 
   <!-- List all the skins being supplied by this theme -->
   <RDF:Seq about="urn:mozilla:skin:root">
-    <RDF:li resource="urn:mozilla:skin:pinstripe3" />
+    <RDF:li resource="urn:mozilla:skin:classic/1.0" />
   </RDF:Seq>
 
-  <!-- classic Information -->
-  <RDF:Description about="urn:mozilla:skin:pinstripe3"
-        chrome:displayName="Pinstripe3"
+  <!-- classic/1.0 Information -->
+  <RDF:Description about="urn:mozilla:skin:classic/1.0"
+        chrome:displayName="Mozilla Firebird Default"
         chrome:accessKey="S"
         chrome:author="webmail@kmgerich.com"
-        chrome:description="Pinstripe 3 Preview."
-        chrome:name="pinstripe3"
+        chrome:description=""
+        chrome:name="classic/1.0"
         chrome:image="preview.png">
     <chrome:packages>
-      <RDF:Seq about="urn:mozilla:skin:pinstripe3:packages">
-        <RDF:li resource="urn:mozilla:skin:pinstripe3:global"/>
-	<RDF:li resource="urn:mozilla:skin:pinstripe3:browser"/>
-	<RDF:li resource="urn:mozilla:skin:pinstripe3:mozapps"/>      
+      <RDF:Seq about="urn:mozilla:skin:classic/1.0:packages">
+        <RDF:li resource="urn:mozilla:skin:classic/1.0:global"/>
+	<RDF:li resource="urn:mozilla:skin:classic/1.0:browser"/>
+	<RDF:li resource="urn:mozilla:skin:classic/1.0:mozapps"/>      
      </RDF:Seq>
     </chrome:packages>
   </RDF:Description>
 
   <!-- Version Information.  State that we work only with major version 1 of this
        package. -->
-  <RDF:Description chrome:skinVersion="1.5" about="urn:mozilla:skin:pinstripe3:global"/>
-  <RDF:Description chrome:skinVersion="1.5" about="urn:mozilla:skin:pinstripe3:browser"/>
-<RDF:Description chrome:skinVersion="1.5" about="urn:mozilla:skin:pinstripe3:mozapps"/>
+  <RDF:Description chrome:skinVersion="1.5" about="urn:mozilla:skin:classic/1.0:global"/>
+  <RDF:Description chrome:skinVersion="1.5" about="urn:mozilla:skin:classic/1.0:browser"/>
+<RDF:Description chrome:skinVersion="1.5" about="urn:mozilla:skin:classic/1.0:mozapps"/>
 </RDF:RDF>