Do things in this order.
1. Open a new empty web page.
2. Open the Network Monitor.
3. Enter the URL into the URL bar & hit Enter. Or use a bookmark to surf to the page.
And if you're serious about sharing the contents of your Network Monitor, there are
several additional considerations you should learn about. Read this:
https://groups.google.com/g/video-downloadhelper-q-and-a/c/h-_z6FIzaOo
The first few posts in that thread will give you background on what we were talking about
there. But then you will find complete instructions on how to share your Network
Monitor. It's not a simple, one-step process. It's a simple, multi-step process. There
are multiple steps. You need to learn what all you have to do.