Why stop at just Facebook? What about Google, Doubleclick, Disqus, Google Analytics, Twitter and all the others that have embedded widgets all over the web?
Do you still need Facebook container if you use Multi-Account Container? This is confusing. I haven't used Firefox in years but the idea of containers sounds awesome. I just wish the UI was a little less confusing.
No. Facebook container is basically a fork of multi account container that only quarantines facebook. It's meant for less technical people who might not want to set up their own filtering rules on multi account container.
