I use Firefox as well
Luckily NoScript saved my old choices so the sites I frequent already have it disabled.. haven't tested new choices yet though
Interesting. And you switched to the new Firefox? Because for me it has issues remembering a lot of things. It does indeed remember a bunch of sites I've white or blacklisted, but for Vgchartz I now have the "Hot Topics" section blocked every time I restart the browser. And embedded Youtube clips as well. That was never the case before on the old Firefox.
The new Firefox also doesn't remember certain choices for me on Youtube, such as "Night mode" or that I've turned "Auto play" off. I have to redo those things every time.