What is cz.mobilesoft.appblock.fileprovider in that URI?
In Content://Cz.Mobilesoft.Appblock.Fileprovider/Cache/Blank.Html, the part "cz.mobilesoft.appblock.fileprovider" shows the app’s name and its file provider function. "cz.mobilesoft.appblock" is the unique package name for the AppBlock app. The Android component called the "file provider" is an inbuilt system that allows the app to provide control of some files securely. It is just a system normalcy and does not do any harm on its own. There are a lot of such applications that essentially just have a file provider entry to allow storage or sharing of temporary files without exposing the actual file paths.
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