The dropdown menu in the new version 11.4 has a hideous, huge, Fisher-Price appearance with rounded corners. A developer is replying to these reviews suggesting one of the 11.4.1RCs - but there is no way to download these from the site linked to.
I've just reverted to 11.3.7, available from this site: https://addons.mozilla.org/en-GB/firefox/addon/noscript/versions/
Then, in Firefox Settings/Add-ons, I switched off automatic updates.
I don't know whether one of the 11.4.1 RCs offers a real option to keep the original appearance, because I can't find them anywhere. Please add this feature into future releases, because the new UI is horrible. I haven't even tried it on some of the e-commerce/newspaper sites where the menu might have 20+ sites listed - would they even fit on my screen?