[Mozilla Enterprise] ESR 60 to 68, old profile

Sat Sep 21 18:16:41 UTC 2019

I need to upgrade all my users from 60.9 to 68.x ESR.  However, they have needed data in the old profile such as certificates and settings.  Is there a flag during install to say ‘use old profile’ and don’t make a new one?  What are my options other than communicating to all enterprise users how to revert their profile after?
 Thanks
    Todd
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