Firefox sync uses end-to-end encryption: https://support.mozilla.org/en-US/kb/how-firefox-sync-keeps-your-data-safe-even-if-tls-fails https://support.mozilla.or

Firefox sync uses end-to-end encryption: https://support.mozilla.org/en-US/kb/how-firefox-sync-keeps-your-data-safe-even-if-tls-fails https://support.mozilla.org/en-US/kb/how-firefox-sync-keeps-..., https://github.com/mozilla/fxa-auth-server/wiki/onepw-protocol https://github.com/mozilla/fxa-auth-server/wiki/onepw-protoc.... There's nothing mandatory about the initial shortcuts - just remove them. It's trivial to change your search engine to Duck Duck Go too.