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How do the fingerprinter blocking levels work across Firefox's standard/strict/custom Enhanced Tracking Protection in Windows and Android?

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I'm having trouble breaking down the specific behavior of fingerprinting protection for the 3 settings levels.

According to the Windows release notes dated 1 October 2023, "Additionally, you can choose whether to block Suspected Fingerprinters in all windows or just in private windows", but also, "To disable Fingerprinting Protection and return to the default settings, simply select "Standard" or "Strict"

In my reading, these two statements conflict. I'm under the impression that "known fingerprinter" blocking is always active, even on standard. Does enabling "Strict" enhanced protection also enable "suspected fingerprinter" blocking, and if so, is it active on all windows or only in private browsing? Does that mean we need to use the "Custom" setting to enable suspected fingerprinting blocking in all windows?

My question is the same for Firefox for Android 131.0, except in the mobile app's case, the release notes contain even less detail - so I could also be off-base there. TBH I am probably missing something obvious, so if anybody can even point me in the right direction I'd be grateful!

Thanks for any insight anybody can provide!

Chris Thomas

I'm having trouble breaking down the specific behavior of fingerprinting protection for the 3 settings levels. According to the Windows release notes dated 1 October 2023, "Additionally, you can choose whether to block Suspected Fingerprinters in all windows or just in private windows", but also, "To disable Fingerprinting Protection and return to the default settings, simply select "Standard" or "Strict" In my reading, these two statements conflict. I'm under the impression that "known fingerprinter" blocking is always active, even on standard. Does enabling "Strict" enhanced protection also enable "suspected fingerprinter" blocking, and if so, is it active on all windows or only in private browsing? Does that mean we need to use the "Custom" setting to enable suspected fingerprinting blocking in all windows? My question is the same for Firefox for Android 131.0, except in the mobile app's case, the release notes contain even less detail - so I could also be off-base there. TBH I am probably missing something obvious, so if anybody can even point me in the right direction I'd be grateful! Thanks for any insight anybody can provide! Chris Thomas

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