Can you open addons.mozilla.org/en-US/firefox from mainland China?
Sometimes.
No recent testsVerdict from 2026-04-10 · 4 mo ago
As of the last test on 2026-04-10 — 4 mo ago — it was partly disrupted in mainland China. We haven't tested it since, so this may have changed.
Access addons.mozilla.org/en-US/firefox with GreatFireVPN →Frequently asked questions
Is addons.mozilla.org/en-US/firefox blocked in mainland China right now?
We haven't tested addons.mozilla.org/en-US/firefox in the last 90 days. As of the last test on 2026-04-10 (4 mo ago), it was partly disrupted in mainland China. Use the Test now button on this page for a fresh measurement.
Why is addons.mozilla.org/en-US/firefox blocked in mainland China?
As of the last test on 2026-04-10 — 4 mo ago — it was partly disrupted in mainland China. We haven't tested it since, so this may have changed.
Since when has addons.mozilla.org/en-US/firefox been blocked?
GreatFire has recorded interference with addons.mozilla.org/en-US/firefox from mainland China since 2019-05-04.
How can I access addons.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 addons.mozilla.org/en-US/firefox.
https://addons.mozilla.org/en-US/firefox · JSON