Can you not collapse them at all or do you mean that they uncollapse after a refresh? The latter might have to do with HN storing this collapse-state in a Cook

Can you not collapse them at all or do you mean that they uncollapse after a refresh? The latter might have to do with HN storing this collapse-state in a Cookie/localstorage/similar and Firefox Focus throwing these sorts of things semi-regularly away to protect privacy. It does not throw away the login-Cookie, so I'm not entirely sure how it works. They might even have a whitelist or (in this case erroneous) blacklist for it.