You're operating off of outdated information. Rules do not need to be baked into the manifest. >The Declarative Net Request API now allows for the registratio

You're operating off of outdated information. Rules do not need to be baked into the manifest. >The Declarative Net Request API now allows for the registration and removal of dynamic rules - specified at runtime rather than statically in the manifest. We’ve also added the capability to remove common tracking headers, such as Referer, Cookie, and Set-Cookie. https://blog.chromium.org/2019/06/web-request-and-declarative-net-request.html https://blog.chromium.org/2019/06/web-request-and-declarativ...