Can you open https://firefox-portal-detection.com from mainland China?
Yes.
All 1 recent conclusive tests connected normally.
2026first tested
0/1disrupted · last 90 days
3 mo agolast tested
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Frequently asked questions
Is https://firefox-portal-detection.com blocked in mainland China right now?
As of the last test on 2026-08-06, https://firefox-portal-detection.com is not blocked in mainland China, based on GreatFire's live Great Firewall measurements.
https://firefox-portal-detection.com · JSON