One of the most useful features in Firefox is the cookie policy to accept all first-party cookies but throw them away when you close Firefox except for certain

One of the most useful features in Firefox is the cookie policy to accept all first-party cookies but throw them away when you close Firefox except for certain sites you've whitelisted. This allows you to stay logged into HN for example but discard all Facebook, Google, and other cookies. Chrome currently only lets you throw away all cookies when you close it and doesn't offer the ability to whitelist domains. It sounds like this might bring in the missing functionality.