Is http://mozilla.org/zh-TW blocked in mainland China?

Part of mozilla.orgMixed190 tested URLs

Can you open http://mozilla.org/zh-TW from mainland China?

Sometimes.

Access is unreliable — 100% of the last 1 conclusive tests showed interference.

Access mozilla.org with GreatFireVPN →

2023first tested

1/1disrupted · last 90 days

6 d agolast tested

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Other tested URLs on mozilla.org

Mixed4 blocked64 disrupted116 accessible6 no verdictAll 190 tested URLs on mozilla.org →

Blocking varies across mozilla.org: 4 blocked vs 116 accessible among tested hosts.

Each verdict covers the last 90 days of tests, as on that URL's own page.

Frequently asked questions

Is http://mozilla.org/zh-TW blocked in mainland China right now?

As of the last test on 2026-08-18, http://mozilla.org/zh-TW is 100% disrupted in mainland China, based on GreatFire's live Great Firewall measurements.

Why is http://mozilla.org/zh-TW blocked in mainland China?

Access is unreliable — 100% of the last 1 conclusive tests showed interference.

Since when has http://mozilla.org/zh-TW been blocked?

GreatFire has recorded interference with http://mozilla.org/zh-TW from mainland China since 2023-03-26.

How can I access http://mozilla.org/zh-TW 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 mozilla.org.

http://mozilla.org/zh-TW · JSON