diff --git a/extensions/firefox/components/pdfContentHandler.js b/extensions/firefox/components/pdfContentHandler.js
index 5f659bd9c..444db1c1f 100644
--- a/extensions/firefox/components/pdfContentHandler.js
+++ b/extensions/firefox/components/pdfContentHandler.js
@@ -55,7 +55,6 @@ pdfContentHandler.prototype = {
     if (targetUrl.indexOf('?pdfjs.action=download') >= 0)
       throw NS_ERROR_WONT_HANDLE_CONTENT;
 
-    aRequest.cancel(Cr.NS_BINDING_ABORTED);
     aRequest.cancel(Cr.NS_BINDING_ABORTED);
     window.location = url.replace('%s', encodeURIComponent(targetUrl));
   },