I'm not the one who asked the question but am in the same position. All third-party content is off, I'm using a long-term container for stuff where I need to be

I'm not the one who asked the question but am in the same position. All third-party content is off, I'm using a long-term container for stuff where I need to be logged, and temporary containers and no first-party cookies for everything else. I do have some bugs with the interaction of both so I'm happy if I can have the same think with stock Firefox