Thank you so kindly for so many times you've generously helped people.
Firefox (FX) version 98.0 started, to profile prompt
Created new profile
Added extension NoScript
Imported settings that were exported earlier today
Opened youtube.com
Temporarily trusted youtube.com (items appear)
(icons appear, page is usable)
opened a video
closed all other windows
changed FX settings to open prior session pages
closed FX
opened FX still using new profile
(The youtube page appears, mostly white)
Clock button, Set all to temporarily trusted
(Temporarily trusted all 4 domains shown, including youtube.com)
All 4 appear as temporarily trusted. But icon has a 1. Alas, the page is mostly white, unusable. F5 gives no help.
Control-N new window.
Found my way to this thread. Clicked "latest development build " in Giorgio post (Tue Mar 15, 2022 6:26 am CST U.S.A.)
Temporarily allowed all scripts (noscript.net is the only entry shown)
https://noscript.net/getit#devel
Clicked "If you're brave enough and you need a specific feature or fix not released yet, or you simply want to provide feedback before official release, you may want try this
"Quantum" NoScript 11.4rc3 development build"
Clicked "continue to installation"
Clicked "add"
Clicked Okay to box "NoScript was added" with okay in private windows checked
Alt-tab to YouTube window
F5
It loads
alt F-X close FX
opened FX still using new profile
(2 browser instances appear. I almost always use separate browser windows, not tabs)
On the youtube page, Clicked Clock button, Set all to temporarily trusted
(Temporarily trusted all 4 domains shown, including youtube.com)
Again, page does not load, even though everything is temporarily trusted.
F5 does not solve it (which I consider a superfluous attempt. Upon clicking the temporarily trust button the page has always reloaded instantly)
Flipped over to the page for developer builds (I set FX to reload pages from prior session).
I went alt-left arrow "Back" to this thread (Firefox sessions remember 'back' and 'forward' info)
I clicked to temporarily trust all.
Now the icon has a 2 on it, even though there's only item (noscript.net) and it's showing as temporarily TRUSTED.
I suspect that if I again click on the developer page link and click the "brave" link it will function, as though it's required to be loaded every time.
I can do that test, but I'll just watch the thread now for your instructions.