diff -r 4560e7a43588 -r 3bd9825cf895 eric6/UI/UserInterface.py --- a/eric6/UI/UserInterface.py Wed Jun 05 19:48:53 2019 +0200 +++ b/eric6/UI/UserInterface.py Sun Jun 09 11:09:54 2019 +0200 @@ -5938,7 +5938,7 @@ """ Private slot handling the end of the external web browser process. """ - self.__webBrowserProcess.deleteLater() + self.__webBrowserProcess and self.__webBrowserProcess.deleteLater() self.__webBrowserProcess = None self.__webBrowserClient = None