You have always been able to block all third-party cookies in Firefox via the custom choice, but that can possibly break more websites than the standard cookie setting, so that will never be the default. *https://support.mozilla.org/en-US/kb/cookies-information-websites-store-on-your-computer *https://support.mozilla.org/en-US/kb/third-party-cookies-firefox-tracking-protection ---- *https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop *https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection *https://support.mozilla.org/en-US/kb/trackers-and-scripts-firefox-blocks-enhanced-track

I know, but I rather looking answer for future and more from web sites perspective than user, what are plans for 3rd party cookies support in Firefox, blocking tracking cookies from predefined trackers list is end of hardening privacy protections or similarly to Safari Firefox/Mozilla has plans to block ALL 3rd party cookies by default at some point?