As of Firefox 131, I intend to turn CHIPS on by default on all platforms. It has been developed behind the “network.cookie.CHIPS.enabled” preference. We have been enabling CHIPS support in the Nightly channel since Firefox 128.
Bug to turn on by default: Bug 1908160 - Enable CHIPS by default
Standard: link to the standard: https://github.com/privacycg/CHIPS
This feature was previously discussed in this "Intent to prototype: CHIPS(Cookies Having Independent Partitioned State)" thread