Is Mozilla Down? Check current status

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

Current Mozilla status

Mozilla is working normally

Updated from Mozilla official status page a few minutes ago

Mozilla not working for you?

Mozilla service health. Issues reported in the last 24 hours

Check 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.

Working Normally
Possible Incident
Confirmed Outage
Mozilla Outage Map

View Mozilla Reports Map

Track Mozilla on your status page

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Mozilla recent 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. It will show official Mozilla outages and also issues that we're started by a spike in crowdsource reports.

Date Incident Duration
Jan 31, 2020
08:55 AM UTC
Minor
MDC1 Outage
We are currently investigating issues related to one of our data centers (MDC1) being unreachable...
about 2 years
Dec 24, 2018
12:00 PM UTC
Minor
Incident - We're experiencing HG problems, trees are closed.
Please note we are currently experiencing an issue with the following: Mercurial repos. Service a...
over 3 years
Dec 14, 2018
04:41 PM UTC
Minor
Incident - various websites are unaivalable
Please note we are currently experiencing an issue with the following: Some nubis hosted website ...
over 3 years
Dec 05, 2018
03:22 AM UTC
Minor
Incident - dxr.mozilla.org is down
Please note we are currently experiencing an issue with the following: dxr.mozilla.org. Service a...
over 3 years
Nov 17, 2018
06:53 PM UTC
Minor
support.mozilla.org is unavailable
Please note we are currently experiencing an issue with the following: support.mozilla.org Servic...
over 3 years
Oct 19, 2018
12:55 PM UTC
Minor
Incident - Bugzilla is having issues with submit
Please note we are currently experiencing an issue with the following: Service and Impact: When ...
over 3 years
Oct 07, 2018
06:53 AM UTC
Minor
Incident - wiki.mozilla.org loading blank pages
Please note we are currently experiencing an issue with the following: wiki.mozilla.org Service ...
over 3 years
Oct 05, 2018
08:12 AM UTC
Minor
Incident - IRC network issues affecting clients
Please note we are currently experiencing an issue with the following: IRC network issues affecti...
over 3 years
Sep 17, 2018
09:21 PM UTC
Minor
Incident - Two Community Sites are down (start.mozilla.ro and www.mozilla.ro)
Please note we are currently experiencing an issue with the following: start.mozilla.ro and www.m...
over 3 years
Sep 14, 2018
04:38 PM UTC
Minor
Incident - start.mozilla.com is unavailable
Please note we are currently experiencing an issue with the following: Failure loading Firefox st...
over 3 years
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Looking to track Mozilla outages?

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  • Track status changes in real-time
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  • Create private or public status pages

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User comments about Mozilla status

See what users are saying about Mozilla issues that impacted them and how they are affected by the outage. You can see if other users are experiencing the same issues and if there are any workarounds or solutions.

  • cant load anything, cant search anything.

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

  • Betty - after an update no web sites will come up.

  • Marilyn - can't get browser to open .

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

  • Eloise - Firefos will not start up.

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

  • Judith - Browser will not start even after a re-install.

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

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

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

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

  • richard - When I click on the icon, nothing happens..

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

  • Gary - 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..

  • juile - accounts.firefox.com won't load.

  • lyn - can't send or receive emails.

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

  • John - 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.'.

  • Brandon - SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE on every single site..

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

  • Janet - can't get into any of my games.

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

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

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

  • Austin - 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..

  • P - Keeps saying my tabs have crashed..

  • Andy - Bowser won't work. Can search anything .

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

  • Deb - 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....

Users who monitor Mozilla status also monitor these services

Users are monitoring tens of services with IsDown. Here are some that are monitored together with Mozilla. With IsDown you can get a bird's eye view of all your dependencies and how they are performing.

Zoom

Zoom

MAINTENANCE
Microsoft 365

Microsoft 365

OK
Slack

Slack

MINOR
Google Workspace

Google Workspace

MINOR
Google Cloud

Google Cloud

OK
Kaseya

Kaseya

MAJOR
Microsoft Azure

Microsoft Azure

OK
Bitwarden

Bitwarden

OK
FortiWeb Cloud

FortiWeb Cloud

OK
Exclaimer

Exclaimer

OK
Humi

Humi

OK
WatchGuard

WatchGuard

OK
ADP

ADP

OK
GoDaddy

GoDaddy

OK
Meraki

Meraki

OK
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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

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0 incidents in 2025

How to monitor the status of Mozilla and all your dependencies?

IsDown is a status page aggregator that monitors if Mozilla and all your dependencies are experiencing issues. We combine the status of all the services you dependent and provide a clear view of all your vendors health in one place. We not only monitor official information but also crowdsourced reports. That means that even when Mozilla, per example, doesn't report an outage, you will still be notified if other users are experiencing issues.

How IsDown monitors Mozilla?

IsDown monitors Mozilla health in almost real-time

Every few minutes we go to the status page of Mozilla (and 4,522+ other services) and check if they are experiencing issues. We collect the status and outage information of Mozilla's 28 components. Also, we not only monitor official sources but also user reports. Sometimes or a lot of times vendors take some time to report an incident, so by monitoring user reports we're able to alert you early.

The moment an issue is detected in Mozilla, IsDown sends an alert and updates your status page

Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from Mozilla and other services.

What you get when monitoring Mozilla with IsDown

Track Mozilla incidents and downtimes by severity

IsDown checks Mozilla official status page for major/minor outages or downtimes. A major outage is when Mozilla experiences a critical issue that severely affects one or more services/regions. A minor incident 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. The moment we detect a Mozilla outage, we send you an alert and update your dashboard and status page.

Get alerted as soon as users reports problems with Mozilla

Mozilla and other vendors don't always report outages on time. IsDown collects user reports to provide early detection of outages. This way, even without an official status update, you can stay ahead of possible problems.

All the details of Mozilla outages and downtimes

IsDown collects all information from the outages published in Mozilla status page to provide the context of the outage. 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.

Prepare for upcoming Mozilla maintenance events

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.

Only get alerted on the Mozilla outages that impact your business

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.

One platform to monitor all your external dependencies

Our tool was build to be the best way to monitor all your external dependencies in one place. IsDown not only will help you monitor Mozilla but also 4,522 other services. Your team and customers will have a clear view of all your dependencies and their status, making it easier to identify and resolve issues.

Monitor Mozilla and all your external dependencies in real-time

Add all your dependencies to your dashboard. IsDown will monitor them in real-time and send you alerts when there is an issue. You can also create a status page for a bird-eye view and share it with your team.

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Get notified imediatelly when there's an issue with Mozilla or other services

Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from Mozilla and other services.

Start Monitoring for Free

Send outage information from Mozilla and other services to your tools

IsDown integrates with 20+ tools. Connect the status of Mozilla and 4,522 other vendors to your tools to receive vendor outage alerts exactly where your team needs them.

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Share Mozilla status in your status page

Create a status page that can easily be access by your team and customers. You can make it public or private, and customize it to your needs. This will be your first line of communication when there's the question 'Is Mozilla down?'

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Mozilla Downdetector vs IsDown

While Downdetector relies on user-submitted reports to detect Mozilla outages, IsDown monitors Mozilla's status page for verified, detailed incident information. Here's why official monitoring provides better reliability for your business:

Features
Downdetector
Official Mozilla status page monitoring with real-time incident details.
Monitor 4,522+ services including Mozilla in a single dashboard.
Instant Mozilla outage alerts sent to Slack, Teams, PagerDuty, and more.
Combined monitoring of Mozilla official status and user-reported issues.
Maintenance feed for Mozilla
Granular alerts filtering by Mozilla components and regions.
Start Monitoring Mozilla with IsDown

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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"

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.

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