Mozilla Status. Is Mozilla Down?

Check if Mozilla is down, recent outages, user-reported issues, and outages map.

Is Mozilla down right now? What's the current status?

Mozilla is working normally

Having problems with Mozilla?

 

Mozilla service health. Issues reported in the last 24 hours

Working Normally
Possible Incident
Confirmed Outage

This chart displays the number of user-reported issues over the past 24 hours, grouped into 20-minute intervals. It's normal to see occasional reports, which may be due to individual user issues rather than a broader problem. We only consider an issue widespread if there are multiple reports within a short timeframe. Sign up for free to see more Mozilla status data.

Mozilla Outage Map

View Mozilla Outage Reports Map

Recent Mozilla Outages and Downtime History

IsDown has tracked 32 incidents since started monitoring Mozilla status in June 2021. We collect data from 4522+ services, and normalize the data to give you a clear picture of the impact of the outage.

Date Status Incident Duration
Jan 31, 2020
08:55 AM UTC
 Minor MDC1 Outage about 2 years
Dec 24, 2018
12:00 PM UTC
 Minor Incident - We're experiencing HG problems, trees are closed. over 3 years
Dec 14, 2018
04:41 PM UTC
 Minor Incident - various websites are unaivalable over 3 years
Dec 05, 2018
03:22 AM UTC
 Minor Incident - dxr.mozilla.org is down over 3 years
Nov 17, 2018
06:53 PM UTC
 Minor support.mozilla.org is unavailable over 3 years
Oct 19, 2018
12:55 PM UTC
 Minor Incident - Bugzilla is having issues with submit over 3 years
Oct 07, 2018
06:53 AM UTC
 Minor Incident - wiki.mozilla.org loading blank pages over 3 years
Oct 05, 2018
08:12 AM UTC
 Minor Incident - IRC network issues affecting clients over 3 years
Sep 17, 2018
09:21 PM UTC
 Minor Incident - Two Community Sites are down (start.mozilla.ro and www.mozilla.ro) over 3 years
Sep 14, 2018
04:38 PM UTC
 Minor Incident - start.mozilla.com is unavailable over 3 years
Sign up to check more outage history
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Mozilla problems reported by users

  • cant load anything, cant search anything

  • Extremely slow loading pages. Tried all of the usual suspects and even uninstalled, but the issue persists. Start.me won't open at all.

  • after an update no web sites will come up

  • can't get browser to open

  • Can't open any of my everyday sites with Firefox today 5/31/25 since about 11:00 am (east coast)

  • Firefos will not start up

  • My email is so slow to download. Problem started yesterday. So frustrating when I need to complete forms

  • Browser will not start even after a re-install

  • Whenever I click on the app, just a spinning circle for a few seconds then nothing happens.

  • It absolutely will not even let me load it this evening

  • Unab;e to open the website which provides the access to most all of my other programmes.

  • CANNOT OPEN FIREFOX TO GET ON MY INTERNET PAGE. CAN YOU PLEASE HELP.

  • When I click on the icon, nothing happens.

  • Firefox does not load when called for in my task bar

  • Trying to login to booking.com and can't. Keeps going back to the first stage of sign in. Username and password are correct and I've been using it no problem until today. I can open it in google no problem.

  • accounts.firefox.com won't load

  • can't send or receive emails

  • browser cannot load webopages; internet available and other browsers function correctly

  • All of a sudden, I'm getting a banner that says 'the certificate for my pop.xxxxxxx.com isn't valid' and 'Someone could be trying to impersonate the server.'

  • SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE on every single site.

  • It won't stop disconnecting and it is very unstable.

  • can't get into any of my games

  • Can't log into any site because of security risk

  • crashing for 10 hrs everytime i try to open link in new tab

  • Shows extensions are not working: restarting or disabling them at all does not solve the issue

  • Was having issues with things loading in the firefox browser, so I uninstalled to reinstall and now I can't even get to Mozilla's website to download.

  • Keeps saying my tabs have crashed.

  • Bowser won't work. Can search anything

  • Fails to accept Leeds Building Society user name at login. Simply hangs with "Please wait"

  • Customized icons on homepage/new tab not loading at all. When I open a new tab, it appears to be there but I can't click it to access it. The opening homepage tab does access the internet - one time only, and then freezes. This has been happening for the past 36 hours. I've shutdown and reloade...

  • Firefox has crashed several times in the past 36 hours. It is currently running but extremely slowly. There have been no updates to the computer in question during this period.

  • Just did an update and now nothing works

  • Cannot access accounts.firefox.com

  • repetitive and frequent crashing

  • Unable to load any pages on firefox on Mac; Safari and Chrome are working ok. This started yesterday.

  • No sites are loading on PC or on mobile

  • Every time I open the browser, I get the message that the tab has crashed.

  • Using certain programmes it freezes and then firefox asks for feedback and apologises

  • Firefox cannot access the internet

  • The WidevineCdm plugin has crashed

  • My tabs are crashing regardless the site I try to go on. My connection is good and other browser are functional. I get error message, that my panel is down and if I want to report it.

  • I am unable to open various websites on my Firefox browser. Now using Edge, no problems there. Checkes internet, wifi, no issues. Just seems to be Firefox browser issue.

  • trying to use Firefox to access the Screwfix website - keeps coming up with Error 403?

  • can´t load youtube and some other sites.

  • Can't load some websites today

  • When i go to open Firefox i get an error message error platform version 130.0 is not compatible with min version<> = 129.0.2

  • Facebook doesn't work properly on Firefox. Works fine on I.E./Edge

  • Tabs are running very slow and continuously not responding message is received.

  • Every time I train search something it says work site cannot be reached and not just for my PC on two different phones as well

  • NOT ABLE TO SIGN IN TO MY ACCOUNT

  • Firefox takes ages to load any page but Chrome is absolutely fine.

  • im connected to the eithernet but it seems that firefox is running off a AOL Floppy internet connection

  • Every location connection fails ... "Server unavailble "

  • Firefox Sync down - error 502.

  • Mozilla's Firefox seems to be down. Anything and everything I try to search for leads to a "site not found" error. I was using Firefox with no problems and nothing different from usual when it happened, so I don't see how it could be a client-side problem too.

  • Mozilla is constantly crashing, even after restarting pc, restarting the browser or turning off all addons its still crashing. And im unable to log off from my account, it just doesnt react.

  • Twice in a day I have gotten an unresponsive window with tabs open. In both cases using private windows. It have had to use Edge as en emergent solution.

  • can not load pages and extremely slow, times out as well

  • It won't open at all. Just opens to a blank screen.

Mozilla status page - All services & components

Component Status
Mozilla Websites OK
Mozilla Services OK
External Services OK
Infrastructure OK

Mozilla Related Services & Alternatives

Services commonly monitored together with Mozilla and alternatives

Zoom

Zoom

MAINTENANCE
0 incidents in the last 30 days
Microsoft 365

Microsoft 365

OK
0 incidents in the last 30 days
Slack

Slack

OK
0 incidents in the last 30 days
Google Workspace

Google Workspace

OK
0 incidents in the last 30 days
Google Cloud

Google Cloud

OK
0 incidents in the last 30 days
Kaseya

Kaseya

MAJOR
0 incidents in the last 30 days
Azure

Azure

OK
0 incidents in the last 30 days
Bitwarden

Bitwarden

OK
0 incidents in the last 30 days
FortiWeb Cloud

FortiWeb Cloud

OK
0 incidents in the last 30 days
Exclaimer

Exclaimer

OK
0 incidents in the last 30 days
Humi

Humi

OK
0 incidents in the last 30 days
WatchGuard

WatchGuard

OK
0 incidents in the last 30 days
ADP

ADP

OK
0 incidents in the last 30 days
GoDaddy

GoDaddy

OK
0 incidents in the last 30 days
Meraki

Meraki

OK
0 incidents in the last 30 days
IsDown Chrome Extension - It's Free

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Mozilla offers a range of open-source products including the Firefox browser, developer tools, and community platforms like Mozilla Support and Discourse for collaboration and discussion.

Monitoring Mozilla since June 2021

Tracking 28 Mozilla services and regions

0 incidents in 2025

Mozilla outages in the last 28 days

September 2025
Sun
Mon
Tue
Wed
Thu
Fri
Sat
7
8
9
10
11
Sep 11, 2025
No Outages
12
Sep 12, 2025
No Outages
13
Sep 13, 2025
No Outages
14
Sep 14, 2025
No Outages
15
Sep 15, 2025
No Outages
16
Sep 16, 2025
No Outages
17
Sep 17, 2025
No Outages
18
Sep 18, 2025
No Outages
19
Sep 19, 2025
No Outages
20
Sep 20, 2025
No Outages
21
Sep 21, 2025
No Outages
22
Sep 22, 2025
No Outages
23
Sep 23, 2025
No Outages
24
Sep 24, 2025
No Outages
25
Sep 25, 2025
No Outages
26
Sep 26, 2025
No Outages
27
Sep 27, 2025
No Outages
28
Sep 28, 2025
No Outages
29
Sep 29, 2025
No Outages
30
Sep 30, 2025
No Outages
1
Oct 01, 2025
No Outages
2
Oct 02, 2025
No Outages
3
Oct 03, 2025
No Outages
4
Oct 04, 2025
No Outages
5
Oct 05, 2025
No Outages
6
Oct 06, 2025
No Outages
7
Oct 07, 2025
No Outages
8
Oct 08, 2025
No Outages
9
10
11

Number of Incidents

0 issues

Last incident

2077 days ago

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Frequently Asked Questions

Is Mozilla down today?

Mozilla isn't down. You can check Mozilla status and incident details on the top of the page. IsDown continuously monitors Mozilla official status page every few minutes. In the last 24 hours, there were 0 outages reported.

What is the current Mozilla status?

Mozilla is currently operational. You can check Mozilla status and incident details on the top of the page. The status is updated in almost real-time, and you can see the latest outages and issues affecting customers.

Is there a Mozilla outage now?

No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.

Is Mozilla down today or just slow?

Currently there's no report of Mozilla being slow. Check on the top of the page if there are any reported problems by other users.

How are Mozilla outages detected?

IsDown monitors the Mozilla official status page every few minutes. We also get reports from users like you. If there are enough reports about an outage, we'll show it on the top of the page.

Is Mozilla having an outage right now?

Mozilla last outage was on March 14, 2017 with the title "Incident: air.m.o Video on Demand is not allowing playback of recorded meetings"

Mozilla down for everyone or just me?

How to check if Mozilla is down?

Why use IsDown to monitor Mozilla instead of the official status page?

Because IsDown is a status page aggregator, which means that we aggregate the status of multiple cloud services. You can monitor Mozilla and all the services that impact your business. Get a dashboard with the health of all services and status updates. Set up notifications via Slack, Datadog, PagerDuty, and more, when a service you monitor has issues or when maintenances are scheduled.

How IsDown compares to DownDetector when monitoring Mozilla?

IsDown and DownDetector help users determine if Mozilla is having problems. The big difference is that IsDown is a status page aggregator. IsDown monitors a service's official status page to give our customers a more reliable source of information instead of just relying on reports from users. The integration allows us to provide more details about Mozilla's Outages, like incident title, description, updates, and the parts of the affected service. Additionally, users can create internal status pages and set up notifications for all their third-party services.

Want to be informed about Mozilla status changes?

IsDown offers an easy way to monitor Mozilla with maximum flexibility

Major Outages Notifications

IsDown monitors Mozilla for major outages. A major outage is when Mozilla experiences a critical issue that severely affects one or more services/regions. When Mozilla marks an incident as a major outage, IsDown updates its internal status, the customer status page and dashboard. Depending on the customer settings, IsDown will also send notifications.

Minor Outages Notifications

IsDown monitors Mozilla status page for minor outages. A minor outage is when Mozilla experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. When a minor outage occurs, IsDown updates its internal status and shares that information on the customer status page. Depending on the customer settings, IsDown will also send notifications.

Outage Details

IsDown collects all information from the outages published in Mozilla status page to provide the most accurate information. If available, we gather the title, description, time of the outage, status, and outage updates. Another important piece of information is the affected services/regions which we use to filter the notifications that impact your business.

Maintenance Feed

Mozilla publishes scheduled maintenance events on their status page. IsDown collects all the information for each event and creates a feed that people can follow to ensure they are not surprised by unexpected downtime or problems. We also send the feed in our weekly report, alerting the next maintenances that will take place.

Component Filtering

IsDown monitors Mozilla and all their 28 components that can be affected by an outage. IsDown allows you to filter the notifications and status page alerts based on the components you care about. For example, you can choose which components or regions affect your business and filter out all other outages. This way you avoid alert fatigue in your team.

Early Outage Detection

Mozilla and other vendors don't always report outages on time. Our crowdsourced status platform helps you stay ahead of outages. Users report issues and outages, sharing details on what problems they are facing. We use that info to provide early signs of outages. This way, even without an official update, you can stay ahead of possible problems.

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