--- a/docshell/base/nsDownloadHistory.cpp
+++ b/docshell/base/nsDownloadHistory.cpp
@@ -64,17 +64,17 @@ nsDownloadHistory::RegisterSelf(nsICompo
     return NS_ERROR_UNEXPECTED;
   
   PRBool registered;
   nsresult rv = compReg->IsContractIDRegistered(NS_DOWNLOADHISTORY_CONTRACTID,
                                                 &registered);
   NS_ENSURE_SUCCESS(rv, rv);
 
   // If someone has already registered the contractID, we don't want to register
-  // it ourself.  We do want to register though in case someone wants to access
+  // it ourselves.  We do want to register though in case someone wants to access
   // this implementation (by CID).
   if (registered) {
     return compReg->RegisterFactoryLocation(GetCID(), "nsDownloadHistory",
                                             nsnull, aPath, aLoaderStr, aType);
   }
 
   return compReg->RegisterFactoryLocation(GetCID(), "nsDownloadHistory",
                                           NS_DOWNLOADHISTORY_CONTRACTID,