Can you open www.mozilla.org/en-US/firefox from mainland China?
No.
No recent testsVerdict from 2026-03-25 · 4 mo ago
As of the last test on 2026-03-25 — 4 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Access www.mozilla.org/en-US/firefox with GreatFireVPN →Frequently asked questions
Is www.mozilla.org/en-US/firefox blocked in mainland China right now?
We haven't tested www.mozilla.org/en-US/firefox in the last 90 days. As of the last test on 2026-03-25 (4 mo ago), it was blocked in mainland China. Use the Test now button on this page for a fresh measurement.
Why is www.mozilla.org/en-US/firefox blocked in mainland China?
As of the last test on 2026-03-25 — 4 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Since when has www.mozilla.org/en-US/firefox been blocked?
GreatFire has recorded interference with www.mozilla.org/en-US/firefox from mainland China since 2018-08-23.
How can I access www.mozilla.org/en-US/firefox from mainland China?
You need a circumvention tool such as a VPN. GreatFireVPN, built by GreatFire, is designed to bypass the Great Firewall and reach sites like www.mozilla.org/en-US/firefox.
https://www.mozilla.org/en-US/firefox · JSON