This is being abused by advertisers to track you across the web.
If they do care about privacy it would be good for them to copy Safari and make this 7 days.
If I get logged out of every website on a weekly basis I'm going to be annoyed.
> This is being abused by advertisers to track you across the web.
How do they use first party cookies to track you?
Disclosure: I work for a small privacy focused ad company.
[1] https://webkit.org/blog/11338/cname-cloaking-and-bounce-trac...
Then those websites should move to Passkeys.
> How do they use first party cookies to track you?
Because Meta and Google allows websites to submit advertising data to them server side using a self-hosted JS file which sets the first party cookies on your behalf.
How does ex. 7d expiration help with that?
domain fronting
Also, Firefox partitions cookies by site (aka Total Cookie Protection), so first-party facebook.com cookies, cross-site facebook.com cookies on example.com, and cross-site facebook.com cookies on example.net all get separate cookie jars.
https://blog.mozilla.org/security/2021/02/23/total-cookie-pr...
Advertising industry has been moving to first party cookies ever since Apple implemented ITP.