How to disable IDM's download button on Youtube?

I followed the guide on their official website about adding a site to the exception list but the button still appears on every single youtube video. I added *youtube . com* and even tried other variants like *www . youtube . com* and it still doesn't work.

Can someone help please? Thank you.

Edit: As per jcunews1's solution, disable the IDM browser extension - it is toggleable per website.