Hi Allen,
thank you very much for the quick reply!
The RSS feel URL is something like https://fbrss.com/f/b9db2………c005ca16f.xml?me
I don’t want to post it here because it is the link to my Facebook timeline. However, I can send it to you via email or provide you with a login.
The feed is definitly working both directly in e.g. Firefox as well as as a shortcode. I also tried it in Feedly and it is also working there.
Thank you,
Roland