Block specific sites, previous instructions no longer working

An extension I run will occasionally update and load a webpage. I want to block this.

I followed the instructions in this post, but it does not work. How can this be done from within Brave? (Not using Windows’ HOSTS file)

Brave Version( check About Brave):

Brave 1.81.137 (Official Build) (64-bit)
Chromium: 139.0.7258.158

I don’t think there is a way to block specific websites natively at this time. Even the solution you’re referencing from years ago was kind of a hacky way of doing it. Can you tell me the exact extension you’re using when you see this?