Part of mozilla.orgMixed190 tested URLs
Can you open https://www.mozilla.org/en-US/exp/firefox from mainland China?
Sometimes.
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Access www.mozilla.org with GreatFireVPN →2020first tested
1/1disrupted · last 90 days
6 d agolast tested
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Frequently asked questions
Is https://www.mozilla.org/en-US/exp/firefox blocked in mainland China right now?
As of the last test on 2026-08-18, https://www.mozilla.org/en-US/exp/firefox is 100% disrupted in mainland China, based on GreatFire's live Great Firewall measurements.
Why is https://www.mozilla.org/en-US/exp/firefox blocked in mainland China?
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Since when has https://www.mozilla.org/en-US/exp/firefox been blocked?
GreatFire has recorded interference with https://www.mozilla.org/en-US/exp/firefox from mainland China since 2020-08-23.
How can I access https://www.mozilla.org/en-US/exp/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.
https://www.mozilla.org/en-US/exp/firefox · JSON