Enabling Firefox fingerprint resistance feature kills darkmode on most pages?

[Utone]

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4. See error

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Firefox (please complete the following information):

• OS: [e.g. iOS]
• Browser edition and version [e.g. ESR, Developer Edition]
• Extension version [e.g. 12]

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[metastable-void]

I think that's probably the feature of Firefox, to disable dark mode detection on Fingerprint Resistance modes.