ignore some common errors in sentry

services/web/app/views/sentry.jade

@@ -31,7 +31,10 @@
 				'bmi_SafeAddOnload',
 				'EBCallBackMessageReceived',
 				// See http://toolbar.conduit.com/Developer/HtmlAndGadget/Methods/JSInjection.aspx
-				'conduitPage'
+				'conduitPage',
+				'NS_ERROR_NOT_CONNECTED:',
+				"TypeError: Cannot read property 'row' of undefined",
+				'TypeError: start is undefined'
 			],
 			ignoreUrls: [
 				// Facebook flakiness