rem: if (!host) 
add: if (isSystemURL(tabBrowser.currentURI.spec)) this.setPref("allowSystemPages", !disable); else if (!host) 
context:     disableSite: function(disable)    {        var ioService = CCSV("@mozilla.org/network/io-service;1", "nsIIOService");        var host;        try        {            host = tabBrowser.currentURI.host;        }        catch (exc)        {            // XXXjjb eg about:neterror and friends.        }        if (!host)            this.setPref("disabledFile", disable);        else        {            var uri = ioService.newURI("http://" + host, null, null);            if (disable)                pm.add(uri, "firebug", DENY_ACTION);            else            {                if (this.isURIDenied(uri))                    pm.remove(host, "firebug");                else                    pm.add(uri, "firebug", ALLOW_ACTION);            }        }        this.disableCurrent(disable);    },
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/fd3fa7073b03b34b49adc8add0f84b5b4e33907f/firebug.js/clean/extension/content/firebug/firebug.js