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Will allowing HTML5 Canvas data in RFP fallback to FPP? (lemmy.ml)

submitted 9 months ago* (last edited 9 months ago) by [email protected] to c/[email protected]

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Since version 118+, Firefox introduced FPP (Finger Printing Protection) which is in short water downed version of RFP (Resist Finger Printing).

FPP is enabled by default from version 119 onwards if you enable ETP (Enhanced Tracking Protection).

FPP randomizes canvas data subtly than RFP, which is why RFP breaks some sites. So, my question is, if we allow canvas data extraction for a broken site will it fallback to FPP's subtle canvas randomization, or allowing it will expose canvas data completely if we have ETP enabled?

Relevant link: https://support.mozilla.org/en-US/kb/firefox-protection-against-fingerprinting

Edit: More info about HTML5 canvas fingerprinting https://webbrowsertools.com/canvas-fingerprint/

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[–] [email protected] 1 points 9 months ago

RFP covers a lot more metrics than just the canvas, I don't think it would fallback to FPP. You can test it on Arkenfox's TZP test site to make sure though.