Hello @mackusman
There is lots of example here in the forum on how to do this, you can have a look here at
Here is some very basic steps:
Step 1
Make sure you are running the latest firmware
Step 2
Activate content filtering
Step 3
Add your domain name of “fzmovies.de” in as blocked.
Step 4
Apply Changes.
Please let us know how you go.
Happy to Help,
Marcus 