Total Cookie Protection in Chrome-based browsers

Privacy/security benefits:

• Partitioning cross-site cookies makes XSS attacks less powerful.
• Cross-site cookies with the attribute are less susceptible to CSRF attacks than unpartitioned, third-party cookies.

https://github.com/privacycg/CHIPS#security-and-privacy-considerations


So third-party storage partitioning chosen by Edge is complementary to CHIPS.
I currently have enabled flags in Edge and left third-party cookies blocking.

 

This feature (Experimental third-party storage partitioning) is enabled by default in the latest version of Firefox (109):

https://www.ghacks.net/2023/01/17/firefox-109-manifest-v3-support-security-fixes-and-improvements/