Following discussions in which Google had required that Symantec migrate Symantec-branded certificate issuance operations a non-Symantec-operated “Managed Partner Infrastructure”, a deal was announced whereby DigiCert acquired Symantec's website security business. In September 2017, Google announced that starting with Chrome 66, "Chrome will remove trust in Symantec-issued certificates issued prior to June 1, 2016". Google further stated that "by December 1, 2017, Symantec will transition issuance and operation of publicly-trusted certificates to DigiCert infrastructure, and certificates issued from the old Symantec infrastructure after this date will not be trusted in Chrome." Google predicted that toward the end of October, 2018, with the release of Chrome 70, the browser would omit all trust in Symantec's old infrastructure and all of the certificates it had issued, affecting most certificates chaining to Symantec roots. Mozilla Firefox planned to distrust Symantec-issued certificates in Firefox 63 (released on October 23, 2018), but delivered the change in Firefox 64 (released on December 11, 2018). Apple has also planned to distrust Symantec root certificates. Subsequently, Symantec exited the TLS/SSL segment by selling the SSL unit to Digicert for US $950 millions in mid 2017.