i have ad and script blocking, plus a few other things. if a site doesn't work. big deal, i'll go elsewhere.
certain news sites in particular don't seem to understand that they are not the only one with 'the scoop'. lock an article behind a paywall, i'll just click and drag that headline, then right-click and search. boom a dozen other non-paywalled sources for coverage of the same story, some with your exact article, even.
Btw, if a website does not work for you, try to archive it at archive.org, and see if you can view it that way. Some of the interactive elements work usually, but of course the website will become dumber, but at least you can read it.
When does this moment of bliss happen? I must've missed it. All I noticed when I lost my firefox profile for some reason and had to make a new one was about an hour of fiddling with the settings, installing extensions, and messing with userChrome.css to make it look reasonable.
And when you sync it and you only get your bookmarks and history but you have to disable again the data collection and google as a search engine and you have to set up again it's looks...