Title: Time and again, users on the Internet are shown to be uniquely identifiable through new and old data leakage from their browser.<p>And I&#x27;m wondering: just like browsers already display &quot;do you want to share your location&quot; when websites try to access this info, why don&#x27;t they have this kind of security mechanism for every information that could make the user uniquely identifiable such as &quot;This site wants to know [the list of installed [fonts|plugins] | the battery status of your device | ...] ?&quot;<p>Are there some technicalities that make this a particularly hard problem?
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