NoScript has always been working very good. You can set it up to run on your frequently website once. After that it will remember your settings so NoScript dont just "break" things. Put all the ad company and google spy service to Untrusted. Put the "good" ones to temp trusted so you can see that it works. For example YouTube you would like to be trusted so it works. Google.com you would want to add to Untrusted. Play around with the settings then you have a great protection.

Perfect for blocking unwanted/unneeded javascript!

Sadly it stopped to work for YouTube for me. YouTube do not load at all with multliple errors in browser's console "Uncaught ReferenceError: ytcfg is not defined", even when I have YT's javascrips as allowed. Only thing which helps is to turn off NoScript extension. I believe this is only temporary situation...

EDIT: latest version 11.0.36 fixes the problem, so once again perfect! :)

It's a nice addon, but the latest release broke some websites, e.g. https://space.bilibili.com/161775300

Easy to use JavaScript blocker.

Up until Firefox 79, NoScript was an indispensable part of my security suite, handling intrusions and trouble scripts very well. But now either Firefox or NoScript does not remember my instructions from one session to the next, forcing me to re-approve privileges each time I revisit a site. I don't know why this is happening, but it's an enormous hindrance and a great timesuck. Can you look into this for me, Giorgio? Your product has been a Godsend to me, and I want to continue using it.

NoScript works perfect also on firefox 79.0
If it doesn't remember settings the reason could be CCleaner > Custom Clean > Applications > Firefox > “Internet Cache” option deletes all *.sqlite-shm, *.sqlite-wal,
see
https://blog.mozilla.org/addons/2020/07/09/changes-to-storage-sync-in-firefox-79/#comment-226931
That’s a bug in CCleaner, not in NoScript and not in Firefox.

Works perfectly on all websites used. All pages loads slower than usual time.