The plugin used to gather all users using the same IP address without manual searching. But this has stopped working now, and I can only find out by searching.
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I just upgraded Discourse and see a message now:
[Admin-Hinweis] Eines deiner Themes oder Plug-ins enthält Code, der aktualisiert werden muss. (ID:discourse.deprecated-resolver-normalization)
And in developer console:
DEPRECATION NOTICE: Looking up 'route:admin-plugins-fingerprint' is no longer permitted. Rename to 'route:admin-plugins/fingerprint' instead [deprecation id: discourse.deprecated-resolver-normalization]
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Following up on the deprecation above.. on current core (v2026.8.0-latest.1) it’s not just a warning any more, the report page itself looks broken.
/admin/plugins/fingerprint comes up with an empty “latest matches” and flagged list, and the console throws:
Uncaught (in promise) TypeError: Cannot convert undefined or null to object
at Object.values (<anonymous>)
at fingerprint-report.js:58
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My imaginary friend and I tried around a litte bit and came up with two changes for this plugin. One for the deprecation notice and one for the JS error in the development console of the browser.
I would like to ask you to take a look at this. I can’t really program.
If the fixes are okay I can do a PR. If desired.
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I usually spoof my fingerprints; how will it treat folks like me? I promise I’m not a troll 
Asking because I’m with the privacy tribe, and they are usually very respectful of discussion ethos but do not want to give their data everywhere and every time.
I don’t see browser fingerprints as a real threat to privacy. I’d rather have tools to protect against botnets, spoofed fingerprints, scrapers and DoS attacks than focus on alleged privacy. As a site operator, that’s a real threat for me.
Well, in EU fingerprinting is considered as a real threat, and that’s why it is forbidden.
It is not forbidden. And I have legitimate use case: to flag account bot activity and suspicious login patterns, etc.
But don’t trust my words. Check yourself what Cloudflare is doing and how with EU based sites.
Well, some of us see the opposite:
That is not a legitime use case at all. You just can’t use such profiling tool for masses that creates a database to indentify individuals.