Sorry, I haven't thought to bookmark any of them. I'm just talking about sites I'd come across while browsing, perhaps following some interesting links from sites like HN. But on a noticeable number of occasions now, dev tools confirm there are script errors that seem to come from identifiers being undefined and the like, and if I literally disable every add-on I'm using, they are still undefined (but only in Firefox, not other browsers). The changes to promote privacy in recent versions of Firefox seem like the most likely explanation at that point, though to be fair I have no hard evidence of that either.
I have encountered a few issues with uBlock and annoyances filter breaking the chocolatey website (portable software provider) where it leaves the site with an overlay. I've seen this in a few other places too.
I opened the chocolatey website with outright disabled scripts and it works ok. Markup is not very bad, search even works and they have noscript autohiding spinners (didn't know such a thing can exist at all), I suppose it was designed with noscript compatibility in mind.