> Total Cookie Protection is going to put cookies that only Facebook can see in a different jar for each separate site you visit, making it so that Facebook can’t read it’s own cookies across different sites.
Won't this break some basic features like being logged in to Facebook (or similar services, e.g. Disqus) for the purpose of embedded comment sections on other sites? They don't use cookies only for tracking buttons after all. It would be… annoying… for every site to require a separate login.
They handle it gracefully. As per their write-up[1]:
> In addition, Total Cookie Protection makes a limited exception for cross-site cookies when they are needed for non-tracking purposes, such as those used by popular third-party login providers. Only when Total Cookie Protection detects that you intend to use a provider, will it give that provider permission to use a cross-site cookie specifically for the site you’re currently visiting. Such momentary exceptions allow for strong privacy protection without affecting your browsing experience.
Yes, it might break embedded features like comments unless you whitelist the allowed uses. I would assume Firefox handles this thoughtfully, but I haven’t tried the new cookie jars yet, so I don’t know what the UI looks like or allows.
Elsewhere they mentioned that there are exceptions for "popular" SSO systems, but I have a hard time imagining any exception that would allow a shared login for Facebook comments while blocking Facebook tracking across sites. These are essentially the same mechanism.
Won't this break some basic features like being logged in to Facebook (or similar services, e.g. Disqus) for the purpose of embedded comment sections on other sites? They don't use cookies only for tracking buttons after all. It would be… annoying… for every site to require a separate login.