Just to contribute to the discussion. The ossnchatbell cookie is on ‎components/OssnSounds/plugins/default/js/sounds.php‎ file, at lines 22, 32, 59 and 66), according to the https://github.com/opensource-socialnetwork/opensource-socialnetwork/blob/4e80cfed2f3a58070fa1c8e44578c3458d4b6516/components/OssnSounds/plugins/default/js/sounds.php#L22.

The rl_bfp is related to the RememberLogin component.

I'll check my components if this warning applies to me.

I am not addressing them, I am simply reporting the messages I am getting in my console. I assume reference is made to them as I use the system and they get written to my browser by the OSSN software.

Peter,
which of these Ossn cookies do you expect to be used or ARE you using in a 3rd-party context?

Here are some ossn cookies

Some cookies are misusing the recommended “SameSite“ attribute 2
        Cookie “ossn_chat_bell” does not have a proper “SameSite” attribute value. Soon, cookies without the “SameSite” attribute or with an invalid value will be treated as “Lax”. This means that the cookie will no longer be sent in third-party contexts. If your application depends on this cookie being available in such contexts, please add the “SameSite=None“ attribute to it. To know more about the “SameSite“ attribute, read https://developer.mozilla.org/docs/Web/HTTP/Headers/Set-Cookie/SameSite opensource.socialnetwork.js:633:63
        Cookie “rl_bfp” does not have a proper “SameSite” attribute value. Soon, cookies without the “SameSite” attribute or with an invalid value will be treated as “Lax”. This means that the cookie will no longer be sent in third-party contexts. If your application depends on this cookie being available in such contexts, please add the “SameSite=None“ attribute to it. To know more about the “SameSite“ attribute, read https://developer.mozilla.org/docs/Web/HTTP/Headers/Set-Cookie/SameSite

Free Ossn or premium modules doesn't have any cookie named LocalAppUser