diff --git a/content/base/src/nsDOMFileReader.cpp b/content/base/src/nsDOMFileReader.cpp
index 811eb0c7c11..0e71de6dfc7 100644
--- a/content/base/src/nsDOMFileReader.cpp
+++ b/content/base/src/nsDOMFileReader.cpp
@@ -483,7 +483,6 @@ nsDOMFileReader::ReadFileContent(nsIDOMFile* aFile,
   mDataFormat = aDataFormat;
   mCharset = aCharset;
   mError = nsnull;
-  SetDOMStringToNull(mResult);
 
   //Obtain the nsDOMFile's underlying nsIFile
   nsresult rv;
diff --git a/content/base/test/test_fileapi.html b/content/base/test/test_fileapi.html
index d545bb5df37..118dead78a0 100644
--- a/content/base/test/test_fileapi.html
+++ b/content/base/test/test_fileapi.html
@@ -116,20 +116,6 @@ r.readAsText(createFileWithData(convertToUTF32(testTextData)), "UTF-32");
 expectedTestCount++;
 
 
-// Test reusing a FileReader to read multiple times
-r = new FileReader();
-r.onload = getLoadHandler(testASCIIData, "to-be-reused reading")
-var makeAnotherReadListener = function(event) {
-  r = event.target;
-  r.removeEventListener("load", makeAnotherReadListener, false);
-  r.onload = getLoadHandler(testBinaryData, "reused reading");
-  r.readAsBinaryString(binaryFile);
-};
-r.addEventListener("load", makeAnotherReadListener, false);
-r.readAsText(asciiFile, "");
-expectedTestCount += 2;
-
-
 //Test data-URI encoding on differing file sizes
 dataurldata = testBinaryData.substr(0, testBinaryData.length -
                                        testBinaryData.length % 3);