Firefox Community Forum

I changed ISP's this week and my computer connects via Ethernet cable through my router. I have no real issues accessing the internet. But after waking from sleep or restarting, Firefox displays the network login prompt. How do I get rid of it? Thanks.

Server Not Found

Firefox can’t connect to the server at web.whatsapp.com. What can you do about it?

Try connecting on a different device. Check your modem or router. Disconnect and reconnect to Wi-Fi.

Learn more…

Starting today (7/8/26), Firefox opens with a "cannot connect" message, have tried multiple online suggestions including downloading and "reinstalling" but nothing works

I'm experiencing an intermittent issue with Firefox and I'm trying to figure out what might be causing it.

Occasionally, Firefox stops loading pages in new tabs. If I open a new tab and try to navigate to any website, it won't load, it'll state "waiting for www.[anywebsite].com" forever. However, if I use a tab that was already open before the issue started, I can still navigate to different websites from that tab without any problems.

The only reliable fix I've found is to completely close Firefox and start it again.

One strange thing I've noticed is that, sometimes while this issue is happening, if I put my laptop to sleep and then wake it up again, Firefox starts working normally, including in new tabs, without needing to restart the browser. But this isn't a something that works everytime.

I've already gone through the troubleshooting steps in the Mozilla Support article "Firefox can't load websites but other browsers can", but none of the suggested solutions resolved the issue.

I also tried disabling all my extensions, one by one, but the problem still occurs.

Has anyone seen this behavior before or knows what could cause it?

Additional information:

Firefox version: 152.0.2 (64-bit) (currently shows an available update requiring a restart, but it never seems to update even when enforced restarting) Operating system: Windows 1p Pro Version 10.0.18363 Build 18363

I'd appreciate any answers

Issues with redirect. A group I am a member of uses Constant Contact. An email is sent with a link to a report. Receive this error:

Server Not Found

Firefox can’t connect to the server at deuaxb4ab.cc.rs6.net. What can you do about it?

This worked last week.

Firefox 152.0.4. Win10

I have Mozilla VPN installed on my computer, but not in Firefox. Recently, whenever I turn the VPN on or off, the tab I have open in Firefox reloads. This usually doesn't matter, but sometimes it's really annoying, like when I'm really deep in an infinite scroll website. I want to turn it off, but I tried turning accessibility.blockautorefresh on in about:config, and it still does it. I don't want to blindly mess with settings when I don't know what they do. Does anyone know if there's a setting/group of settings I can use to stop Firefox from reloading on network change?

When I try to open any internet site, I get the Fox icon with cable, saying it can not Access.I did check updates, last on list was June 26,2026. Did Firefox know this with the false window there? How do I get my account on my Dell computer recovered? I am on my PC11 tablet now. Mary Rogers

I regularly and repeatedly get errors messages similar to the one below:

   Server Not Found

   Firefox can’t connect to the server at www.filepuma.com

   'What can you do about it?

   Try connecting on a different device. Check your modem or router. Disconnect and reconnect to Wi-Fi.

I can find no way to correct this. Can you help?

I am trying to be nice but it's should be going both ways . Server Not Found. Firefox can’t connect to the server at www.rebaid.com. AND YOU GIVING ME ADVICE: "Try connecting on a different device. Check your modem or router. Disconnect and reconnect to Wi-Fi." We both know that my router is not the problem nor my PC/device. It's you and you should harder to connect me with a page-site.

I guess I'm hoping an engineer or someone who works on firefox can resolve this cause it's always what pushes what me away.

I'll be sick of Chrome harvesting all my data, I'll download firefox, and I'll set it up. A couple years ago I deleted my chrome profile and switched completely over to firefox. I want to say once a month, I'll open firefox and websites won't load. If they preload they'll act like they're offline.

It's happened to me on Windows machines and Mac machines.

If someone wants to seriously drill down and figure out why this happens across platforms and DECADES, I am happy to provide logs and video chat or something.

It's completely hopeless to get out at the Internet with Firefox, but no problems with my Macs own Safari. I have tried to add Firefox to the firewall as said in the Help-section, but i dosn't work. I am not good at computers. I have three Macs: One Mini with Tahoe 26.5.1; an old MacBook Pro with Catalina 10.15.7 and a MacBook Pro with Sonoma 8.14.3. I use a router connected via fiber.

I can not get web sites to load on my computer in windows 10 on fire fox. Whats wrong? Its been this way for a while now. I just get an error message. Why. Little thing just toggels back and forth no loading. Why?

I use the Firefox browser for MacOS and i use and XBOX series X controller. I connect via Mac Bluetooth and use my XBOX controller for many browser gaming platforms such as XBOX Cloud. The Firefox browser always has connection issues. The controller works perfectly with many other browsers such as Chrome, Edge, DuckDuckGo, Opera (all iterations). Firefox is the only browser were I've had connection issues.

All too frequently, I receive messages as seen on the two enclosed screen dumps. When I click on the "Try again" button, I usually get through to the site I'm trying to reach. But today, I got the other response when attempting to log in to your site. Could that be another version of the usual response to all other sites. Could there be something that is intercepting my requests?

Best regards from Demark,

Eric Brown

P.S. I access the internet from a Lenovo Ideapad running Windows 11 fully updated.