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There are no explicit APIs to enumerate the browser extensions. But this does not mean they are not detectable or that they cannot be included in the fingerprint even if the specific extension is not detected. Browser extensions usually serve a purpose and this purpose can cause side effects, like manipulating the DOM (remove ads, change visual ...


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While there's never been a list of installed extensions available to the site's code, years ago the browser provided an inerrable list of "plugins" called navigator.plugins. These aren't exactly the same as extensions as it's an older technology (eg. shockwave, quicktime, pdf), but some extensions added plugins to the list, and people often confuse ...


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