Can you open addons.cdn.mozilla.net from mainland China?
N/A.
This domain doesn't resolve anywhere we test — including our control outside mainland China — so it appears inactive or unregistered rather than blocked.
2014first tested
6 mo agolast tested
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Frequently asked questions
Is addons.cdn.mozilla.net blocked in mainland China right now?
As of the last test on 2026-02-15, addons.cdn.mozilla.net is not resolvable from anywhere we test in mainland China, based on GreatFire's live Great Firewall measurements.
http://addons.cdn.mozilla.net · JSON