If you enable privacy.resistFingerprinting in Firefox you automatically fail v3 ...

tomrittervg · on Nov 1, 2018

Thanks! I filed https://bugzilla.mozilla.org/show_bug.cgi?id=1503872

When we have time we'll have to trace through what it's doing and what components of RFP are causing the failure. (If anyone wants to do that and report in the bug, we (Mozilla/Tor) would much appreciate the contributions!)

driverdan · on Nov 1, 2018

Sounds like the feature is working exactly as intended and the problem is with reCAPTCHA.