Is bugzilla.mozilla.org blocked in mainland China?

Can you open bugzilla.mozilla.org from mainland China?

Sometimes.

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

Access bugzilla.mozilla.org with GreatFireVPN →

2014first tested

1/1disrupted · last 90 days

7 d agolast tested

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Other tested URLs on mozilla.org

Blocking varies across mozilla.org: 2 blocked vs 44 accessible among tested hosts.

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

Frequently asked questions

Is bugzilla.mozilla.org blocked in mainland China right now?

As of the last test on 2026-07-23, bugzilla.mozilla.org is 100% disrupted in mainland China, based on GreatFire's live Great Firewall measurements.

Why is bugzilla.mozilla.org blocked in mainland China?

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

Since when has bugzilla.mozilla.org been blocked?

GreatFire has recorded interference with bugzilla.mozilla.org from mainland China since 2014-08-27.

How can I access bugzilla.mozilla.org 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 bugzilla.mozilla.org.

http://bugzilla.mozilla.org · JSON