I have always loved requestpolicy but for some reason something about RPContinued makes me nervous. Policeman would be a great alternative if Sync worked[^1]. I cant use policeman if it means I have to jump through the same hoops on every firefox installation in order to get things set up.
The name for the concept comes from the name of the HTTP-SwitchBoard extension (predecessor to uMatrix). It's skeuomorphic.
The extensions which have a switchboard like interface enable the user to block requests based on the request's domain name, the primary frame's domain-name, and also the type of request.
In contrast, extensions like NoScript have a global switch. If I allow scripts from DontBeEvil.com, they are enabled on all domains. They don't prevent XSS attacks, for example.
If there's a better name for this concept, please do suggest one.
[^1]: https://github.com/futpib/policeman/issues/28 Plus issues 92 and 95.