Ok, here is the issue I'm having using the external app.
1. It only lodes firefox after a reboot of the system, and once loaded the browser stays in front of all other content even after it's timeline is finished. The browser does not close on it's own. You can hear the other content playing in the background though...
I have the browser loading in a fullscreen screen division.
If I close it manually, the 'external app' component won't load it again the next time that timeline comes around, just a black screen.
It also dosen't load after doing a save/sync.