I am having the issue related to the iTunes as I am being unable to use the iTunes account on the browser due to the adblock plus. The adblock is not letting me to get the access of the iTunes and giving me iTunes error 9.
Finally got my Mac issue sorted and was able to get it installed, but this is very odd. If you open Safari and go to Preferences > Extensions, are both the Adblock Icon and Adblock Engine entries checked on? I got it all set up on mine (same versions of all software you mentioned above) and I'm not running into any crashes.
There is. Sent to them. Thank you. It only crashes on certain sites. I had 1.18, they updated to 1.19, but said they also have 1.19.1, but I don't see that available yet. Crashed when I came onto Tom's.