diff -Nur mozilla-1.9.1.orig/browser/locales/generic/profile/mimeTypes.rdf mozilla-1.9.1/browser/locales/generic/profile/mimeTypes.rdf
--- mozilla-1.9.1.orig/browser/locales/generic/profile/mimeTypes.rdf	2009-06-29 11:14:41.000000000 -0500
+++ mozilla-1.9.1/browser/locales/generic/profile/mimeTypes.rdf	2009-07-01 08:28:05.407353867 -0500
@@ -1,13 +1,28 @@
-<?xml version="1.0"?>  
-
-<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
-     xmlns:NC="http://home.netscape.com/NC-rdf#"
-     xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
-
-  <Description about="urn:mimetypes"> 
-    <NC:MIME-types> 
-      <Seq about="urn:mimetypes:root"> 
-      </Seq> 
-    </NC:MIME-types> 
-  </Description> 
-</RDF>
+<?xml version="1.0"?>
+<RDF:RDF xmlns:NC="http://home.netscape.com/NC-rdf#"
+         xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
+  <RDF:Seq RDF:about="urn:mimetypes:root">
+  </RDF:Seq>
+  <RDF:Description RDF:about="urn:mimetypes">
+    <NC:MIME-types RDF:resource="urn:mimetypes:root"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:scheme:mailto"
+                   NC:value="mailto">
+    <NC:handlerProp RDF:resource="urn:scheme:handler:mailto"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:handler:web:http://compose.mail.yahoo.com/?To=%s"
+                   NC:prettyName="Yahoo! Mail"
+                   NC:uriTemplate="http://compose.mail.yahoo.com/?To=%s" />
+  <RDF:Description RDF:about="urn:handler:web:https://mail.google.com/mail/?extsrc=mailto&amp;url=%s"
+                   NC:prettyName="GMail"
+                   NC:uriTemplate="https://mail.google.com/mail/?extsrc=mailto&amp;url=%s" />
+  <RDF:Description RDF:about="urn:scheme:handler:mailto"
+                   NC:alwaysAsk="true">
+    <NC:possibleApplication RDF:resource="urn:handler:web:http://compose.mail.yahoo.com/?To=%s"/>
+    <NC:possibleApplication RDF:resource="urn:handler:web:https://mail.google.com/mail/?extsrc=mailto&amp;url=%s"/>
+    <NC:possibleApplication RDF:resource="urn:handler:local:/usr/bin/thunderbird"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:handler:local:/usr/bin/thunderbird"
+                   NC:prettyName="thunderbird"
+                   NC:path="/usr/bin/thunderbird" />
+</RDF:RDF>