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Intranet site 401 Unauthorized kerberos SSO

Hi! We have a intranet site that works in Edge and Chrome without issues with the site added to "internet options". But for some reason we are getting 401 Unauthorized w… (read more)

Hi!

We have a intranet site that works in Edge and Chrome without issues with the site added to "internet options". But for some reason we are getting 401 Unauthorized when trying to access it from Firefox. I have tried adding the urls to: network.automatic-ntlm-auth.trusted-uris network.automatic-ntlm-auth.allow-proxies: true network.automatic-ntlm-auth.allow-non-fqdn: true network.auth.force-generic-ntlm: false network.auth.force-generic-ntlm-v1: false

Ingocnito mode , same error. I have tried disabling all plugins. Disabled DNS over HTTPS.

HTTP/1.1 401 Unauthorized Server: Microsoft-IIS/10.0 WWW-Authenticate: Negotiate X-Powered-By: ASP.NET Date: Mon, 25 May 2026 08:15:41 GMT Content-Length: 0

Regards Rasmus

Open 20 27

Google Drive is stuck in a loop error saying I am not signed in when my email is signed in

Hello, I am having an issue where my google account half logs out after every session. My gmail remains logged in, but google search does not. Google drive (and this is … (read more)

Hello,

I am having an issue where my google account half logs out after every session. My gmail remains logged in, but google search does not. Google drive (and this is the main issue), is stuck so that it can see the files of my account, but insists I'm not signed in.

When I attempt to login and retry nothing happens and it remains in the loop. Before today I have been able to open documents only accessible when signed in on google drive by going to the direct link. This is now intermittantly thinking I am not signed in but mostly working.

Things I have tried:

  • Troubleshoot mode does not fix this problem.
  • My firefox is up to date.
  • I have seen this with no extensions or ad blockers.
  • I have seen this both with and without cookies from google allowed.
  • Screenshots attached from when I talked through this with google support. They said it was a problem on your end and can't do anything.
  • This can be solved by logging out of all accounts and back in. But this is not an acceptable solution.
Open 13 221

Facebook completely inaccessible on Firefox

Yesterday, Facebook started to take longer and longer to load a page. Whenever I tried to post something and it took forevahhhh for it to show up on the timeline. I had t… (read more)

Yesterday, Facebook started to take longer and longer to load a page. Whenever I tried to post something and it took forevahhhh for it to show up on the timeline. I had to reload and repost several times since yesterday. All other websites are loading up just fine, but Facebook has taken as long as 30 seconds, sometimes even more before it refreshes a page.

Then.. it got worse. All I could see was the Facebook logo in the middle of the screen and nothing else.

Then it got even worse. As of this morning, I can't even get any results when I google Facebook! I put Facebook into the search bar, click return -- and nothing happens, absolutely nothing.

I'm not seeing any problems with any other website. I have already restarted my modem. I have already cleared out the cache and the cookies. I have restarted my laptop three times. I even looked up Downdetector, but there aren't any problems with the website in general.

Those are all the solutions I've found when searching about this, but the problem is only becoming worse, with everything I try. If there's something I need to change in Facebook settings, I can't do that, because now Facebook is completely inaccessible.

This is only happening on my laptop. Mobile is fine.

Open 11 18

Downloading a file closes the source website.

Previously downloading files did not close the source website. Now when downloading a file, the source website is closed. Requires logging into the source website for ea… (read more)

Previously downloading files did not close the source website. Now when downloading a file, the source website is closed. Requires logging into the source website for each file downloaded. How can closing the source website be stopped.

Open 9 81

Not able to run Facebook on Firefox Version 150.0

Hi this can anyone shed anylight on this please? I was using Facebook earlier today with no problem then now it won't run nor open yet it runs fine in Google Chrome. I've… (read more)

Hi this can anyone shed anylight on this please? I was using Facebook earlier today with no problem then now it won't run nor open yet it runs fine in Google Chrome. I've cleared out the Cookies ect and re-tried but its not pitching anything.

Many thanks Rob

Open 8 230

mymercy.net will not load/log in after last firefox update.

After the last Firefox Update, I can no longer log into my healthcare website. It loads login screen, enter information and it fails to redirect, returning to login scre… (read more)

After the last Firefox Update, I can no longer log into my healthcare website. It loads login screen, enter information and it fails to redirect, returning to login screen. mymercy.net works fine with Edge and Chrome. But I have Firefox set as my default to switching is a pain! I have cleared everything.. reloaded firefox and it still does the same. Tried it with 3 different computers with the same result, so there is something about the new update that mymercy.net doesn't like. any suggestions?

Open 7 18

Font Rendering Issue

Hello, The fonts are not rendering properly on few websites, example(apnetv.xyz), everything was working fine with stable release of v146. The beta versions were having t… (read more)

Hello,

The fonts are not rendering properly on few websites, example(apnetv.xyz), everything was working fine with stable release of v146.

The beta versions were having the same issue, i assumed it was related to Beta releases, so I switched back to stable one. However now firefox has released stable v147, the issue persists. Kindly fix it.

Regards, 4hm3d

Open 6 258

meet.google.com crashes webcam

OS: Windows 11 25H2 (26200.8037) Browser: Firefox 148.0.2 Camera: Logitech C925e When I go to a meeting on meet.google.com, Google Meet says "Camera is starting". My … (read more)

  • OS: Windows 11 25H2 (26200.8037)
  • Browser: Firefox 148.0.2
  • Camera: Logitech C925e

When I go to a meeting on meet.google.com, Google Meet says "Camera is starting". My camera light flashes and then stays on. However, Google Meet is unable to connect to the camera.

Upon closing the tab, the camera light stays on and the camera is unresponsive to all apps. The camera must be unplugged and plugged back in to work again.

The issue does not exist when I go to webcammictest.com in Firefox or in other desktop apps. The camera works correctly on meet.google.com when I use Chrome.

I have tried removing camera and microphone permissions to meet.google.com and re-granting them. I have tried deleting all meet.google.com cookies and storage.

Open 6 145

How do you or I fix a 503 error that's only in Firefox?

No accurate topic in the ddlb, so picked this. I've bought from an ecommerce site for years, using FF as my browser. Suddenly, over the last couple of weeks, I can't get … (read more)

No accurate topic in the ddlb, so picked this.

I've bought from an ecommerce site for years, using FF as my browser. Suddenly, over the last couple of weeks, I can't get to, receiving a 503 error message.

I can still get to the site on Edge, but I don't wish to use it or Chrome for ecommerce. Either they or you broke something. What needs to be done?

Open 6 36

Google maps no longer showing names of places

Hi Google Maps all of a sudden is not showing the names of places in Firefox. When Google maps loads initially the names show for about 1 second and then disappear. I … (read more)

Hi Google Maps all of a sudden is not showing the names of places in Firefox. When Google maps loads initially the names show for about 1 second and then disappear.

 I am on a Surface Pro 9.  

Google Maps works fine in Chrome.

I have already tried disabling extensions, clearing cache, and ensure the performance is set to run normally. 

What else can I do to fix this?

Open 5 362

Long time user - now heading elsewhere

Dear Mozilla, As a long-time Firefox user and evangelist, it saddens me that the time has come to part ways. I have seen threads from others commenting on Firefox's aggre… (read more)

Dear Mozilla,

As a long-time Firefox user and evangelist, it saddens me that the time has come to part ways.

I have seen threads from others commenting on Firefox's aggressive memory consumption and retention. I have not measured this and thus do not feel qualified to comment, but, sadly, I am not surprised.

My own experience in recent times highlights 2 events that have driven me here.

1) Several websites just not responding in that some screens will not even scroll. This is fixed by me moving to a different browser.

2) More seriously - When trying to fill in a web form for a work job application the page was completely unresponsive. When I contacted the web site support their answer was: "Are you using Firefox? Ah, Yes, we are having issues with Firefox that we are trying to resolve. Our suggestion for the time being is, if practical, try using a different browser". That answer worked.

I should add that the usual cache clearing, machine restarts, even Firefox reinstall did nothing to fix either of the above issues.

So with the serious memory greed issues reported by others and my own (dys)functional experiences, I fear the time has come.

Thank you for the last 30 years or so and I am sorry it has come to this.

Best of luck in your future endeavours.

BTW - This post was entered using a different browser.

Open 4 82

Animation Performance Issue in SVG Rendering

In Firefox, the animation exhibits performance issues like stuttering, particularly in elements that rely on animateTransform and animate for movement or opacity transiti… (read more)

In Firefox, the animation exhibits performance issues like stuttering, particularly in elements that rely on animateTransform and animate for movement or opacity transitions. This issue is not present in Chrome, where the animations run smoothly without any noticeable lag.

Expected Behavior: The animation should render smoothly on both Chrome and Firefox without any stuttering or lag, providing a seamless experience for users.

Steps to Reproduce:

Open the provided SVG code in Firefox.

Observe the animation, particularly the elements with animate and animateTransform attributes.

Notice the stuttering or lag compared to the smooth rendering in Chrome.

Open 4 372

PB connexion facebook sur firefox (ok sur google chrome)

Bonjour, Si sur Google Chrome & Microsoft Edge = OK en revanche connexion facebook sur firefox impossible ! J'ai suivi les instruction "vider le cache" etc ... Mais … (read more)

Bonjour,

Si sur Google Chrome & Microsoft Edge = OK en revanche connexion facebook sur firefox impossible !

J'ai suivi les instruction "vider le cache" etc ... Mais Rien à faire connexion facebook sur firefox toujours impossible

Que faire !?

Merci

Compte : [email removed]@hotmail.fr

Open 4 36

Link in email to open in browser if email has display problems does not work

When I click on a link in emails to open in browser if email has display problems, it opens a blank webpage and a small window that I clicked on OK reappears with Firefox… (read more)

When I click on a link in emails to open in browser if email has display problems, it opens a blank webpage and a small window that I clicked on OK reappears with Firefox as my default browser. See attached screenshot. If I select Edge to open the email, it works fine.

Please address.

Open 4 183

Version 147 problems

Since upgrading to 147 last night, ChatGPT does not work and there are issues with other websites (Amazon side bar). Numerous people reported it on reddit. Any suggestion… (read more)

Since upgrading to 147 last night, ChatGPT does not work and there are issues with other websites (Amazon side bar). Numerous people reported it on reddit. Any suggestions for a fix?

Open 4 257