I explain how to do it on Windows using Firefox over here:
https://groups.google.com/g/video-downloadhelper-q-and-a/c/WOblTF4ChQQ
I can't help with other other operating systems & other browsers because I have no
experience with them. But perhaps what I show over there will give you some ideas that
might help you make some progress. It might be useful if somebody using Chrome would go
to that other thread & post some images like I did. Or if it really isn't possible in
Chrome, to post stating that fact. But I can't believe it's impossible in Chrome.
Surely there is an analogous function in that browser to what Firefox offers.