Function disableNative

src/background.js:3171–3175

(item)

        if (false) { // add user option
            var disableNative = function(item) {
                if (!item) return;
                console.log("bg: disable extension " + item.name);
                extensions.setEnabled(item, false);
            }
            extensions.getUserscriptByName(script.name, disableNative);
        }
    };