Hi DavidR,
You can enable FoxBeacon at will, e.g. when you need it to check. What is going on can be found here: chrome://foxbeacon/content/browser.js. For your convenience and mine I will post these questions to Giorgio Maone, the maker of NoScript, and we will have an answer. The source of this addon, Mellon University standard, and professional guidance for the developer makes it is not questionable, then the example after it was build, 'bugnosis", has been used on IE for years and years without many security questions raised. I will just ask Giorgio Maone if NoScript also protects against webbugs at the moment the page is being sent, not at later handling through java script, there I think we have full protection. Also I will ask him what an add-on like ABP can do, and we have to have FoxBeacon enabled to know what to block in ABP for the future, haven't we?
polonus