[nightpool]

In which way is Facebook Container "stricter"? Are you aware of any potential third-party tracking vectors that Firefox does not currently mitigate, but Facebook Container does? The only possible difference I can see is that Facebook Container keeps sites "shared" via Facebook inside of the Facebook Container, so if you navigate from e.g. Facebook -> CNN, facebook can only see the history of CNN pages you've visited inside of the Facebook container. Otherwise, clicking on a share link from Facebook (with, e.g., a unique query parameter) would allow Facebook to correlate their CNN.com facebook cookie with their Facebook.com cookie, getting (retroactive) access to all of your CNN history. So maybe that's one reason to continue to use Facebook Container

[wisniewskit]

I'm not sure if it offers any stricter cookie-specific behavior, but it also blocks network requests Facebook makes on third party pages. So unless you're running in ETP strict/custom mode with the content blocker on, or in private browsing, or maybe an ad blocker that also blocks FB in general, that's probably worth noting.

[ape4]

Yeah, its not really stricter but its different / complementary. Together Facebook Container and Total Cookie will stop more cookies.