Additional options not clickable

Hi,

I have been trying to add labels above my different filters, but I need to edit those in the additional options as I have seen in the tutorials. The only problem, nothing happens after I click on the additional options button, is there a solution?

The problem exists on chrome and firefox, when I open up the inspector I get one error:
Error parsing header X-XSS-Protection: 1; mode=block; report=https://www.google.com/appserve/security-bugs/log/youtube: insecure reporting URL for secure page at character position 22. The default protections will be applied.

I think this has nothing to do with the additional options problems, as it is a common problem at the moment (seen on forums). Does anyone know a solution?

Thanks in advance