Meanwhile, I set intl.accept_languages in Firefox (via about:config) to en-AU,en-GB,en,en-US. I doubt being so specific has ever actually helped, but I’m stubborn. If you’ve ever seen that particular Accept-Languages sequence in your logs… it’s very probably me.
Congratulations, you've made yourself unique and thus easy to track. Use the resistFingerprinting preference in Firefox or just use Librewolf - they automatically enumerate a standardised set of accepted languages that a large userbase all share.
