The solution to this is simple, but not easy: block everything by default and do not prompt to enable it (but do show an indicator of what has been blocked). T

The solution to this is simple, but not easy: block everything by default and do not prompt to enable it (but do show an indicator of what has been blocked). This is how Firefox tracker protection, uMatrix, noscript, and a plethora of ad blockers and other privacy tools work.