diff --git a/src/install.rdf b/src/install.rdf
index 688feb5..dd74ac5 100644
--- a/src/install.rdf
+++ b/src/install.rdf
@@ -8,19 +8,20 @@
     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
 
   <Description about="urn:mozilla:install-manifest">
-	<em:id>{0ed852bb-a216-42e9-b98e-98e62085837f}</em:id>
-	<em:version>1.3.0</em:version>
+    <em:id>{0ed852bb-a216-42e9-b98e-98e62085837f}</em:id>
+    <em:version>1.4.0</em:version>
     <em:name>Moonfox3</em:name>
     <em:description>Experience all the benefits of Pale Moon with the colorful toolbar goodness of Firefox 3! Fork of "Firefox 3 theme for Firefox 4+ Reloaded!" by dallasthemaster and Jeremy Morton</em:description>
     <em:creator>Lootyhoof</em:creator>
     <em:type>4</em:type>
     <em:internalName>mf3</em:internalName>
+    <em:skinnable>true</em:skinnable>
 
-	<em:contributor>dallasthemaster</em:contributor>
+    <em:contributor>dallasthemaster</em:contributor>
     <em:contributor>Jeremy Morton</em:contributor>
     <em:contributor>Graciliano (Win10 caption buttons)</em:contributor>
 		
-	<em:targetApplication>
+    <em:targetApplication>
       <Description>
         <!-- Pale Moon -->
         <em:id>{8de7fcbb-c55c-4fbe-bfc5-fc555c87dbc4}</em:id>