Firefox Community Forum

All of a sudden I am finding that Firefox will not connect me to certain websites such as Walmart, Doordash and even Firefox itself. It looks like it's trying to but it just gets stuck. What's causing this and how do I fix it?

I am investigating a persistent geolocation issue affecting Firefox, where the browser geolocation API returns a precise but incorrect location in the United States.

Actual location: United Kingdom (precise location not shared for privacy)

Incorrect location returned: 39.264542, -76.765924 (Catonsville, Maryland, USA) Reported accuracy: approximately 185 meters around this incorrect point

This issue has been extensively tested and does not appear to be related to IP geolocation, system configuration, or local network setup.

Summary of findings: Reproduced in Firefox and across other browsers:

Mozilla Firefox Microsoft Edge Google Chrome Brave

Reproduced across multiple systems: Windows 11 Windows Server 2025

Reproduced across multiple public IPs: Static /29 allocation BT dynamic IP (completely different address) → Same incorrect Maryland location returned in all cases

Wi-Fi vs Ethernet: Wi-Fi (with SSID/location services) returns correct UK location Ethernet consistently returns Maryland → Indicates fallback to provider-based geolocation rather than IP-based resolution

All standard IP geolocation sources are correct (UK): ipinfo.io ifconfig.co DB-IP / BrowserLeaks IP lookup RIPE allocation Reverse DNS (BT Openworld)

Command-line and non-browser tests confirm correct UK location: curl / PowerShell requests return UK consistently No evidence of US routing, proxying, or DNS leakage

Critical observation: Firefox geolocation (navigator.geolocation) returns:

Exact same coordinates every time Same result across all browsers and machines Consistent high-precision accuracy (~185 meters) around the incorrect Maryland location

Control comparison: Pale Moon (more IP-based geolocation path) returns correct UK location

Conclusion: This does not appear to be a traditional IP geolocation issue.

All IP-based systems resolve correctly to the UK. The incorrect result only occurs when using browser geolocation APIs.

Given: The consistency across browsers and systems The identical coordinates returned each time The high-precision accuracy around the incorrect location

This strongly suggests a provider-side geolocation dataset issue.

Since Firefox uses Mozilla Location Services, I would like to confirm whether:

This result is coming from Mozilla Location Services directly, or from an upstream/shared dataset Whether this type of persistent incorrect high-confidence location can be corrected or escalated within Mozilla’s geolocation system

Thank you.

I get a message that says I must log into this network before I can access the internet then I get another message that says the page isn't direct redirecting properly Firefox has detected that the server is redirecting the request for this address in a way that will never be complete the problem can sometimes be solved back calls by disabling or refusing to accept cookies. I have done neither. don't understand what happened I was browsing and all of the sudden I'm not I guess I may have to switch my browser?

On a dual-stack network, with Windows tcpip6 ‘disabledcomponents’ parameter set to prefer IPv6, Firefox ignores this setting whenever an endpoint resolves both an IPv4 and a NAT64 address.

While monitoring traffic captured while connecting to sites in Firefox, if the initial DNS request for the site comes back with an IPv6 address only, the connection attempts from client’s IPv6 address to destination IPv6. If DNS answers come back with IPv4 and IPv6, the connection attempts IPv6 to IPv6. If DNS answers come back with IPv4 and a NAT64 address, Firefox doesn’t even attempt to connect to the NAT64 address, it immediately defaults to IPv4. I’ve tried disabling the IPv4 fallback setting which doesn’t change the behavior.

We’re running version 140.8.0esr. Is this behavior intended for Firefox? Is there a way to configure Firefox so it doesn’t ignore NAT64 addresses in dual-stack environments? The only way I found to force this was to completely disable the IPv4 stack on the client system’s NIC.

There are times when i am using Firefox that my PC will randomly disconnect from the internet. Sometimes it will reconnect on its own after I close Firefox. Other times I either have to restart my PC or go into Network & Internet settings and connect to my network. I am still running Window 10, free updates. Does anyone know what is causing this? It does not happen with any other browsers.

After i installed firefox net jitter somehow appeared in my cs2. every time i play jitter is jumping randomly. Can yall somehow fix this i really enjoy using this browser but i just cant play with it running in the background((((

A user I am servicing uses Firefox every day. They are on Windows 11. Every afternoon (sometimes at other times), Firefox stops working and loses its internet connection (everything else on their computer continues to be connected). When they close and restart Firefox to reconnect, it then tells me the user that they are using an old profile and need to create a new one. They're able to re-log into their Firefox account, which eventually resyncs all their data, but they then have to re-sign into everything, which is a major inconvenience. The only workaround the I have found is to reinstall Firefox, ever time this happens which then allows the user to use all their settings until they have to repeat the process the next day (i.e., everything remains signed in and/or logging back in is easier than described above).

Here's some additional information and trouble testing we've conducted:

Uninstall and Reinstall of Fire fox

Check for updates (Updated to new version and still suffered the same issue)

Cleared cache and cookies

No extensions

Please if anyone has any advice or recommendations it would be greatly appreciated.

I made my post originally on the 3/9/26 but no one has gotten back to me, so I am creating another post.

As of recent I increasingly have issues with accessing websites, those websites previously (yesterday) worked fine on Firefox. Version is 148.0 on Mac 26.3 (Apple M3 Silicon).

Now it has completely stopped working. Only websites using direct IP-address still work, all others fail with "Hmm. We’re having trouble finding that site.". Safari still opens the websites flawlessly.

Nothing has changed on the OS level or application level as no updates have been installed (no need, as everything is up to date). Antivirus is BitDefender with extension for Firefox enabled for already an extended time (year or so).

I tried disabling several dns.resolver settings as mentioned in https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can. No improvement whatsoever.

I quit firefox, removed the cache manually and restarted while starting a new test profile, so completely blank. Issue is still there.

DNS Servers on OS-level are correct.

Version 148 was installed last night evening and as such could be the reason for the failure since it is basically the only thing that changed.

Good Morning,

my Firefox /Mac OS blocks my NAS in my local network. otherwise I can contact my NAS via Firefox / Ipad OS. Where´s the problem, Firefox kann sich nicht mit dem Server auf 192.168.178.112 verbinden

I don´t find any switches to change.

reg

Viktor

I have noai.duckduckgo.com set as my default search engine. Almost always (but not quite every time) when I type anything into the address/search bar, I get a page with a "Server Not Found" error. (See attached image.) Refreshing the page immediately brings up the results without issue, but I consistently get the error first.

Oddly, if I go into settings and switch to a different search engine and then switch back to duckduckgo, the issue will briefly resolve and it'll work fine for a short while... and then I start getting the error again.

Is there any way to fix this?

I installed firefox a week ago, now in the middle of creating a x account I no longer can reach the internet on this browser, edge works, chrome works. IT SAYS AT THE TOP YOU MUST LOG IN T THIS NETWORK BEFORE YOU CAN AS THE INTERNET. IT LET ME CREATE 1/2 OF A X ACCOUNT.

Is this the reason millions of people are leaving firefox as AI has indicated? The fix is apparently try this for 2 pages. Please create a trouble shooting tool within firefox to fix this junk and I am deleting firefox, don't worry I will reload it 1 - 5 years and try again as I did 1 -5 years in the past.