Hello, evereone! My win-application (1)compose an local-html-template, (2)call to open it with a Firefox as a "text editor" for some changes and getting final local-html-documents and (3)needs to save changed local-html-document automatically under application control. Like model works good with any text-editor like notepad, OpenOffice etc. The application retains control of the text-editor until the text-editor closes (with or without saving document). However, in the case of the Firefox, the application loses control of the Firefox as soon as the page is opened. And the application does not have information about the shutdown of the Firefox. The question is: Is there an Firefox-option that allows you to keep control of the application over the Firefox during open Firefox or tab-session? Thank you so much for any hint, Denis Lopatin