what users overlook that every URL is checked against a database of URLs already in Google's 'safe browsing' repository ...the database of which is downloaded

what users overlook that every URL is checked against a database of URLs already in Google's 'safe browsing' repository ...the database of which is downloaded ahead of time and hence not transmitted to Google. Read this: https://feeding.cloud.geek.nz/posts/how-safe-browsing-works-in-firefox/ https://feeding.cloud.geek.nz/posts/how-safe-browsing-works-... because they're in bed with Google. It's actually Yahoo, not Google, that funds Firefox.