Thanks, Rainbow_2. Sometimes I think I must be going blind not to have seen the link on the Norton Security page.
Can anyone tell me where to find the Norton Security Product Documentation these days?
25-Dec-2016 | 2:21AM Commented on NS is NOT listed in the Startup?!
Get hold of a copy of Autoruns from here: https://technet.microsoft.com/en-us/sysinternals/bb963902. It will show ALL start-up entities, including NS.
Assuming your problem is an add-on, I am providing a list of all add-ons i am running (built-in and selected): I hope this helps.
Could I suggest an upgrade to FF 50.0?