Must-have Rated 5 out of 5 stars

Excellent.

However it doesn't use the new add-on bar properly so you can't move the blocking notification in the status bar. Besides which it's ugly and takes up a lot of room with more text than needed:
"Scripts Partially Allowed | <SCRIPT>: 87 | <OBJECT>: 0"
Could be much nicer:
"87 Scripts blocked" with the icon indicating partial/global allow.

This review is for a previous version of the add-on (2.1.0.3.1-signed).