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Re:Firefox Configuration Guide for Privacy Freaks and Perfor... by severine on Friday March 02, 2018 @06:43AM (#16500713)
>it only controls requests within the webpage, so doesn't have access to it many requests the browser will make outside of that scope.

You also have the "behind the scene" settings:

https://github.com/gorhill/uBlock/wiki/Behind-the-scene-netw...

That's for uBlock Origin but I seem to recall it works similarly in uMatrix (can't check now).

Re:Firefox Configuration Guide for Privacy Freaks and Perfor... by lucideer on Friday March 02, 2018 @08:07AM (#16501075)
Wow. That's not a feature I was aware of at all.

My only concern here is: does the extensions API used by this feature definitely cover all requests made by the browser. e.g. I don't see requests to geolocation services from the Navigator.geolocation API, Google Safe Browsing or CT auditing included in the list of example request types there.