RFP is Firefox's 'Resist Fingerprinting' setting: https://support.mozilla.org/en-US/kb/firefox-protection-against-fingerprinting https://support.mozilla.org/en-

RFP is Firefox's 'Resist Fingerprinting' setting: https://support.mozilla.org/en-US/kb/firefox-protection-against-fingerprinting https://support.mozilla.org/en-US/kb/firefox-protection-agai... The guide is meant to go along with the arkenfox user.js from that repo (previously known as ghacks user.js), and I highly recommend checking out the rest of the repo if you are privacy-conscious.