A Brief Reprieve
I don’t know how long it will remain, but the potential endgame for Safari extensions described in my last post may be further off in the future than originally thought. After all, Apple isn’t Bare Bones, who extensively document how to restore prior behaviors in their apps - usually by editing a property list. As time goes on, I would expect the number of hurdles that must jump through in order to continue use legacy extensions to increase, but the inclusion of the “unsigned” option in the Develop menu gives me hope.
For now, the search for Chrome versions of all my extensions continues apace, as I don’t know how Safari 12’s Intelligent Tracking Prevention might reduce the need for some of the customizations I’ve made.