Bug 392793 - invalid (negative) progress percentage displayed in the window title for certain downloads p=Ryan Jones <sciguyryan@gmail.com> r=sdwilsh

toolkit/mozapps/downloads/content/downloads.js

@@ -88,7 +88,7 @@ function createDownloadItem(aID, aFile, aTarget, aURI, aState,
   dl.setAttribute("type", "download");
   dl.setAttribute("id", "dl" + aID);
   dl.setAttribute("dlid", aID);
-  dl.setAttribute("image", "moz-icon://" + aFile + "?size=32");
+  dl.setAttribute("image", "moz-icon://" + aFile + "?size=32");
   dl.setAttribute("file", aFile);
   dl.setAttribute("target", aTarget);
   dl.setAttribute("uri", aURI);
@@ -381,8 +381,10 @@ function onUpdateProgress()
   while (dls.hasMoreElements()) {
     let dl = dls.getNext();
     dl.QueryInterface(Ci.nsIDownload);
-    mean += dl.amountTransferred;
-    base += dl.size;
+    if (dl.percentComplete < 100 && dl.size > 0) {
+      mean += dl.amountTransferred;
+      base += dl.size;
+    }
     numActiveDownloads++;
   }