[tty]

httpswitchboard looks like a very interesting extension. I haven't payed attention to what's happening with Chrome the last couple of years, but does this mean that you can finally genuinely block requests with Chrome extensions (something that has long been a problem with Chrome's Adblock extensions)?

[gorhill]

There is an API which can reliably block net requests: https://developer.chrome.com/extensions/webRequest

I think it has been available as a mainstream API since early 2012 (Chromium 17).