BB 44865: Block requests to chrome://*/locale.

          return NS_OK;

        }

      } else if (targetScheme.EqualsLiteral("chrome")) {

        nsAutoCString path;

        if (NS_SUCCEEDED(aTargetURI->GetPathQueryRef(path)) &&

            StringBeginsWith(path, "/locale/"_ns)) {

          return NS_ERROR_DOM_BAD_URI;

        }

        // Allow the load only if the chrome package is allowlisted.

        nsCOMPtr<nsIXULChromeRegistry> reg(

            do_GetService(NS_CHROMEREGISTRY_CONTRACTID));