Doesn't work well : scripts on pagead2.googlesyndication.com are stopped but the connection is not stop "immediately" and there is no "numbers" in the toolbar saying that anything was stopped (Firefox 64)
In the old version you have to enable the option to show the number in the toolbar icon, otherwise it is hidden by default. In the new version (0.1.6) the number is always on and cannot be turned off.
