Firefox Community Forum

Long story here:

A few weeks ago, I lost internet connectivity on my desktop PC at work running Windows 11. I checked Firefox, Edge & Chrome but couldn't access any site. It took a few hours and a lot of updating Windows, rebooting each time the internet kicked out, but I got it to work again.

Fast forward to this past Monday the 29th when the issue happened again. Within roughly a minute, the internet just died on my desktop again. I grabbed my work laptop, also running Windows 11: same issue happened within 60 seconds. I checked Firefox on a desktop running Windows 10 - had no issues at all.

Today, I installed Firefox on another laptop (the same model at the other one) running Windows 11. As soon as it synced my account, the internet stopped working. I though it may be the Sync option, so I reinstalled Firefox on my laptop but did not log in to Sync - the same issue: dead internet within 30 seconds now.

I have:

• Run anti-virus
• Run network diagnostics and reset
• Rebooted a multitude of times
• Uninstalled, reinstalled at least twice
• Run troubleshooting in Firefox (which I cannot attach the logs due to it being uninstalled right now)
• Checked to make sure my modem/routers are working right (no one else in the building has this issue and we all use Firefox, but none are synced to my account)
• I even asked my company's tech team (who are mostly software developers) and they said No, sorry, we don't help with that (wonderful right?)

I've attached a screenshot of the OG machine's information. Not sure if it will help at all, but it's worth a shot.

Within a minute of starting Firefox up, it loses internet connection and prevents the computer from connecting to anything else. Using Ethernet or Wifi doesn't work. The only thing that corrects it is restarting the computer. List of things we have tried: Troubleshooting Mode in Firefox Removing all addons Uninstalling and Reinstalling Firefox with the latest update Disabling DNS over HTTPS Clearing Firefox's DNS cache Clearing the computer's DNS cache Adding IPv6 to our standard IPv4 connection Rebooting the router Used a new Firefox profile Run a virus scan

This is on Windows 11. There are multiple other computers on the network, with W10 and W11, and none of them are having this issue. I've tried everything I can think of. After losing connection, it still pings 8.8.8.8.. Is there anything else we can try?

Yesterday, the Firefox quit working. Today my connection was verified by Fios and during the phone call, we tried Google Chrome (Yuck!) and it worked on the internet. I have downloaded the latest Firefox and it still does not work. Is there a problem with Firefox? Should I delete Firefox and reinstall?

Hi. I've been having trouble with Firefox.

When I enter a certain website (https://app.helpwise.io/) using my PC, after a few minutes my internet connection gets disabled. When I try to run 'Diagnose Network Problems' in Win11, no issues.

First time this happened, a restart fixed the problem. Second time, a DNS flush fixed it. But after that, those solutions don't work anymore.

I initially thought it was that website (which I use for work) but I tried running that website on my Android phone using Firefox as well and I did not have any connectivity issues.

So, I tried running the website in Chrome - no issues. I did work side by side with Firefox opened as all my bookmarks for work are there, and eventually after a few hours my internet was disconnected again - even though https://app.helpwise.io/ was not opened in Firefox.

I have tried refreshing Firefox, then disabling all extensions and running https://app.helpwise.io/ and still it immediately disabled my internet.

There are some times that it even turned OFF my Avast anti-virus.

I have tried running Avast and Malwarebytes and no virus or malware was detected.

I still want to use Firefox and I'm now thinking of formatting my computer. But when I run Firefox again after formatting, I may have the same issue.

Can anyone help?

For so, me reason i have lost my connection to FireFox. It was in the last week. I was surprised because i have been using it for a few years. Can you help me to be able to use it again please?

BARRY HATHAWAY 14 SPINNERS COTTAGES LONGFORDS MILL MINCHINHAMPTON STROUD, GLOUCESTERSHIRE GL69LP. UK

"I'm experiencing an issue where Firefox shows a 'Trouble finding site' error every time I visit a new website. However, when I refresh the page, the site loads correctly. This issue persists across multiple websites and requires a refresh every time I navigate to a new page. Has anyone else encountered this problem? I'd appreciate any help in resolving this issue."

below example shows: visited site -> error -> refreshed -> now works

With the most recent updates of Firefox with secure server substitution, I often open the Firefox browser for windows and cannot even reach an initial page because reaching the secure DNS substitute servers (Cloudfare) is failing. The NextDNS server also does not work. I love this security but it appears something is wrong. I have long been using Cloudfare as my listed DNS sever on my router for the entire home LAN, but now it is not connecting by that or by Firefox (and Waterfox) - and this includes using Google and a few other major DNS alternatives , but the Chrome browser, I keep as a backup, works. Moreover, I have had to swap my default DNS on my router and in windows to be my local Spectrum (Charter) DNS servers 71.10.216.1 & 71.10.216.2. They always work when I turn off all Firefox securre browsing settings for DNS and HTTPS. I WANT THOSE PROTECTIONS FROM FIREFOX, BUT I DO NOT KNOW HOW TO MAKE THIS WORK OTHER THAN TURNING ALL SECURITY OFF!!