What is ECH?
LibreWolf
Welcome to the official community for LibreWolf.
LibreWolf is designed to increase protection against tracking and fingerprinting techniques, while also including a few security improvements. LibreWolf also aims to remove all the telemetry, data collection and annoyances, as well as disabling anti-freedom features like DRM. If you have any question please visit our FAQ first: https://librewolf.net/docs/faq/
To learn more or to download the browser visit the website: https://librewolf.net/
If you want to contribute head over to our Codeberg: https://codeberg.org/librewolf
What is ECH and GPC?
ECH: Encrypted Client Hello
GPC: Global Privacy Control
I don't really understand these specs on a deep level, so I can't summarize them for you, but these articles should be able to answer any questions you have:
ECH I can sort of see working.
GPC is just won't have any impact without any kind of laws requiering it's use globally woth actual follow ups and punnishments.
IIRC, Mozilla doesn't ship Firefox with DNS-over-HTTPS (DoH) enabled by default in most countries -- and I think it only does Encrypted Client Hello (ECH) if DoH is enabled.
From LibreWolf's website:
By default DoH is not enabled in LibreWolf.
I assume that also disables ECH by default.