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Martin Kramer
Martin Kramer
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Firefox incorrectly thinks I have Windows 10.

The correct version is Windows 11.

Firefox incorrectly thinks I have Windows 10. The correct version is Windows 11.

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James
James
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There are two reasons why it says you have Windows 10.

Your UserAgent is Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0

The NT kernel version on Windows 11 is the same as Windows 10 because it is based on the same kernel, hence the NT 10.0 in the Firefox UserAgent. https://en.wikipedia.org/wiki/Windows_NT

The second is the Firefox useragent is basically set to show NT 10.0 anyways (which you will see with Firefox on Windows since Fx 116.0+) just as for macOS users it shows macOS 10.15 in UA even if they are using a more current macOS.

See also

See:
  • 1841425 - Hard code UA string's Windows version as 10.0
(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html)

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