I am debugging an Angular 5 app in Firefox DE, but the page load is very slow when debugging. I have blackboxed a number of scripts, e.g. common.chunk.js, polyfils.bundle.js and more besides, but still slow. I notice that the sources panel, after the delay, updates to include "Angular", so I am assuming that the delay is likely there. I have expendanded that folder and it naturally contains a great many files. Is there a way of blackboxing these too, without individually selecting them? Or are there other tips for speeding up/skipping files when debugging an Angular application? Thanks, Victor