The extension should urlencode the pdf when sending it over to the viewer.

diff --git a/extensions/firefox/components/pdfContentHandler.js b/extensions/firefox/components/pdfContentHandler.js
index a234610857937244484b621f9b0eb8a2f2c605a3..5f659bd9c573e58a96837fe05a1433e4903dcacc 100644 (file)
--- a/extensions/firefox/components/pdfContentHandler.js
+++ b/extensions/firefox/components/pdfContentHandler.js
@@ -56,7 +56,8 @@ pdfContentHandler.prototype = {
       throw NS_ERROR_WONT_HANDLE_CONTENT;
 
     aRequest.cancel(Cr.NS_BINDING_ABORTED);
-    window.location = url.replace('%s', targetUrl);
+    aRequest.cancel(Cr.NS_BINDING_ABORTED);
+    window.location = url.replace('%s', encodeURIComponent(targetUrl));
   },
 
   classID: Components.ID('{2278dfd0-b75c-11e0-8257-1ba3d93c9f1a}'),