Google Delays Privacy Sandbox Initiatives, Continues Support for 3rd Party Cookies. Google announced that support for third-party cookies would be extended until late 2023, giving marketers more than a year extension from the previous plan to block third-party cookies by 2022. The Privacy Sandbox initiatives will be delayed while more testing takes place. Google said Thursday it’s pushing back its plan to kill off third-party tracking cookies in Chrome. It now expects to phase out cookies and replace them with tech from its Privacy Sandbox by 2023. The delay comes after Google pledged to give oversight of the cookie changes to the UK’s antitrust watchdog. “While there’s considerable progress with this initiative, it’s become clear that more time is needed across the ecosystem to get this right,” Chrome’s Privacy Engineering Director, Vinay Goel, said Thursday. Google first announced its intentions to kill off the tracking c...