diff --git a/widget/src/windows/nsClipboard.cpp b/widget/src/windows/nsClipboard.cpp
index b222cff21f3e..5232dbfa3f2a 100644
--- a/widget/src/windows/nsClipboard.cpp
+++ b/widget/src/windows/nsClipboard.cpp
@@ -631,12 +631,16 @@ NS_IMETHODIMP nsClipboard::ForceDataToClipboard()
       PRUint32 dataLen;
 
       // Get the data as a bunch-o-bytes from the clipboard
+      // this call hands back new memory with the contents copied into it
       mTransferable->GetTransferData(df, &data, &dataLen);
 
       // now place it on the Clipboard
       if (nsnull != data) {
         PlaceDataOnClipboard(format, (char *)data, dataLen);
       }
+
+      // Now, delete the memory that was created by the transferable
+      delete [] data;
     }
   }
   delete dfList;
diff --git a/widget/src/windows/nsDataObj.cpp b/widget/src/windows/nsDataObj.cpp
index dd073cee6c9d..2eafc25136e4 100644
--- a/widget/src/windows/nsDataObj.cpp
+++ b/widget/src/windows/nsDataObj.cpp
@@ -329,7 +329,7 @@ HRESULT nsDataObj::GetText(nsString * aDF, FORMATETC& aFE, STGMEDIUM& aSTG)
   char     * data;
   PRUint32   len;
 
-  // NOTE: Transferable keeps ownership of the memory
+  // NOTE: Transferable creates new memory, that needs to be deleted
   mTransferable->GetTransferData(aDF, (void **)&data, &len);
   if (0 == len) {
 	  return ResultFromScode(E_FAIL);
@@ -387,6 +387,9 @@ HRESULT nsDataObj::GetText(nsString * aDF, FORMATETC& aFE, STGMEDIUM& aSTG)
 
   aSTG.hGlobal = hGlobalMemory;
 
+  // Now, delete the memory that was created by the transferable
+  delete [] data;
+
 	return ResultFromScode(S_OK);
 }