Off topic: I've been wanting a: 'Exclude on this site,' 'Run on this site only' option for Firefox addons. A site Whitelist / Blacklist menu for all Firefox ad

Off topic: I've been wanting a: 'Exclude on this site,' 'Run on this site only' option for Firefox addons. A site Whitelist / Blacklist menu for all Firefox addons. It should be accessible from the toolbar, so I can click to restrict / allow the current domain without needing to type (that's for the extension details page). This will be massive privacy help.