
How did I do that?
With firefox with the addon included. Firefox is started in the sandbox. Babylon is started out of the sandbox:
With a Sandbox with "\device\namedpipe\babypipe" included. And I deleted the "+" before program-configuration Babylon. (@bo.elam brought me to this idea.)
(It does not work without the entry "\device\namedpipe\babypipe".)
Question:
What exactly makes the entry "\device\namedpipe\babypipe" in Sandboxie?