One of the stated goal of MV3 by Google[1] was to avoid extensions with broad permissions: > our new declarativeNetRequest API is designed to be a privacy-preserving method for extensions to block network requests without needing access to sensitive data This MV3-based AdGuard extension still requires a broad permission to "read or modify host data" on all sites[2]: "host_permissions": [ " " ], So what you have now i…
Stop being at the whims of the Google-controlled browser monopoly --- by filtering content before it gets there.