Is Mozilla Firefox down in Japan?
Checks passingin Japan, measured from Tokyo
Our Tokyo probe last checked Mozilla Firefox at Nov 5, 2026, 3:17 PM UTC and read checks passing.
Over the last 24 hours we completed 58 checks from Tokyo and 58 answered cleanly, 100.00% availability.
Of the 3 other regions we check Mozilla Firefox from, all 3 read checks passing right now.
Email me the next time we see Mozilla Firefox go down
What our Tokyo probe measured
Last checked Nov 5, 2026, 3:17 PM UTC.
Mozilla Firefox from Tokyo over the last 30 days
Over the last 30 days, Mozilla Firefox answered our Tokyo probe in 1,294 ms on average, and 1 check in 20 took longer than 2,154 ms.
Ranked by average response time across the 4 cities we check Mozilla Firefox from, Tokyo 4th; Frankfurt was fastest at 645 ms and Tokyo slowest at 1,294 ms.
From Tokyo we ran 178 checks of Mozilla Firefox in 4 days, and 178 answered cleanly: 100.00% availability.
Every one of those days was clean: not one failed check.
In Tokyo local time (GMT+9), Mozilla Firefox was slowest around 11 AM, at 1,945 ms on average over the last 14 days, and quickest around 1 AM, at 764 ms.
| Day (UTC) | Checks | Availability | Average response |
|---|---|---|---|
| Thu, Nov 5 | 37 | 100.00% | 1,425 ms |
| Wed, Nov 4 | 57 | 100.00% | 1,097 ms |
| Tue, Nov 3 | 59 | 100.00% | 1,304 ms |
| Mon, Nov 2 | 25 | 100.00% | 1,527 ms |
Mozilla Firefox outages measured from Japan
Our Tokyo probe measured no confirmed Mozilla Firefox outage in the last 90 days.
How the other regions read right now
Of the 3 other regions we check Mozilla Firefox from, all 3 read checks passing right now.
| Probe city | Right now | Last 24h |
|---|---|---|
| Ashburn | Checks passing | 100.00% of 140 checks |
| San Jose | Checks passing | 100.00% of 108 checks |
| Frankfurt | Checks passing | 100.00% of 97 checks |
Other countries we check Mozilla Firefox from
How we measured this
Japan readings on this page come from RealUptime's own Tokyo probe against Mozilla Firefox's public endpoints. They are not user reports, and they are not Mozilla Firefox's own status page.
See Mozilla Firefox's full check readings, the 90-day history by region, or the outage tracker methodology.
Japan readings here are taken from that country and show the time of the last one, but Mozilla Firefox has not yet accumulated enough continuous history for us to publish this page to search engines.
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