Firefox Developer Edition with these settings:
- Custom history settings --> no 3rd party cookies
- Tracking protection set to always
- Always send "Do Not Track" header (although not sure that this does much)
privacy.resistFingerprinting: true(spoofs v60, disable while installing some extensions)
security.default_personal_cert: "Select Automatically"
layout.css.devPixelsPerPx: "2.0"or thereabouts
- Multi-Account Containers
- Temporary Containers --> Automatic mode on, Middle: always, Ctrl+left: always, Left: only if not exact same domain
uBlock Origin filter rules
Block Youtube annotations with
Things to consider
privacy.resistFingerprintingspoofs the UA to FF52, so you need to disable it to install some extensions, re-enabling afterwards
privacy.resistFingerprintingstill has some bugs
privacy.firstparty.isolatemay interfere with some authentication? [First-party isolation]
- Do things like always sending Do Not Track headers increase fingerprinting ability?
Firefox on Android also allows no 3rd party cookies, Tracking protection, Do Not Track and uBlock Origin but no containers support and you need to jump through hoops to install p12 certificates.