Changes

Symantec certificate issued before 1 June 2016 are distrusted starting in Firefox 60 unless they are issued by certain whitelisted intermediate CAs([https://bugzilla.mozilla.org/show_bug.cgi?id=1409257 Bug 1409257]). This is in accordance [https://groups.google.com/d/topic/mozilla.dev.security.policy/FLHRT79e3XE/discussion with the distrust plan of 2017].