Firefox Community Forum

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!!

Since upgrading to Windows 10, I can only access my Yahoo email using Microsoft Edge. When I try to access in Firefox or Google Chrome, my access is denied. I've tried clearing cookies, browser history, rebooting my router, etc. Any ideas I can try?

As the title suggest - I am unable to access LI at all.

It's not a profile issue because it loads fine on Edge. It's not an extension issue because it causes the same problems in troubleshooting mode, and it does get me to at least the login page on a private window.

Please help. I'm not sure how to resolve this. It's blocking a lot of my work.

Thanks in advance!

First one is I get a "Sorry, the video player failed to load.(Error Code: 104153)" error when clicking links from a search for a video, if that video is available on YouTube it opens and plays just fine, not from other websites though - and it should. Fix?

Second is one I searched here: "Your browser is being managed by your organization." I found a couple of questions asked - one had a number of things to try, all of which I did, I did delete one Registry entry about certificates, but when the browser reopened, message was still there. None of the other options offered worked either. I don't use Norton (ever!), I use Windows Defender in combination with Malwarebytes Pro for malware. I don't think either of those are at issue. Or can't see how.

This is and has always been only a personal use pc. So, are there other ideas about how to get rid of that message? I've seen it elsewhere too, Chrome, but their help said it was just something they couldn't get rid of and to ignore it. It seems I ought be able to do more than that. Not incidentally, maybe, I see the same message in Windows Settings, can't get rid of it there either. Thanks for any ideas anyone might have. :^)

A lot of my tabs are no longer working since Firefox updated this morning. Here is an error message while trying to long into my Outlook email account, which I'm able to log into on Google -

Request Id: 900f1717-05b9-4f79-8a24-ff0686c96300 Correlation Id: 97f5a174-b630-4245-90d3-cce9fae91938 Timestamp: 2025-08-27T16:51:00Z Message: AADSTS900561: The endpoint only accepts POST requests. Received a GET request.

Ok, this happens every so often. I use a Laptop running up to date Win 11. For the last several days, when I try to get on Facebook, Firefox doesn't log me in all the way. Pages are just frozen and I can't do anything. I back out, I reboot, but nothing works so just now I logged into Edge and am just flying around Facebook! I have changed nothing so it is not me or my machine. Why does Firefox do this? I love it and have used it for years but this drives me crazy!! Thanks

Hello I am unable to log into my email the below message keeps popping up. "Please retry with a different device or other authentication method to sign in. For more details, please see this link" I have reset my password still having the same issue. Please assist!! thank you!:) Georgia

[email removed]@hotmail.com

Not able to open yahoo mail in Firefox Multi-Account Containers tab. firefox version 142.0.1. Windows 10. Works with GMail. When a container tab is opened and you enter "Mail.yahoo.com", firefox tab alternates between (i) login.yahoo.com/?.src=ym&pspid=xxxxxxx and (ii) mail.yahoo.com/d

When I have attempted to log in to my MyPoints and my Entergy electricity account to pay my bill. I can not log in after the previous update. I was able to log in to my Entergy account on 08/22/2025 to pay one of our power bills. This was accomplished with out issue. When I went to log in to my Entergy account on 08/29/2025. The User name and password screen cleared correctly. The next step was for a 2ed step verification with a 6 digit code sent to my cell phone. This did not work at all. I tried several times after restarting my phone , computer, phone and computer with the same result.

"Secure connection and security warning error pages in Firefox." I have read this article, but it does not really help. Since about Monday this week that i have been experiencing a 'lockout' from certain websites that i trust and regularly visit. How is it possible that you can override my own personal security options? This is occurring with Duckduckgo. Using Google allows access to the website. Using Brave presents no problems at all.

So i am going to move away from Firefox to Brave. I appreciate warnings but not lockout. You guys do not know the websites i have been visiting for decades and they are all legal and ethical.

Hi,

I started to notice recently that calendars in some websites I browse with Mozilla are inaccurate. The dates like months, days,... are in a mess. Then I used Google Chrome instead of Mozilla and it went right. It was accurate with Chrome browsing those sites. Did you hear of the same problems with Mozilla ? What can be wrong ?

Thanks for your insights,

All the best,

Denis

I am a long time user of firefox, but over at least the last six months I find that I have to use another browser to log into or use various websites - and I find it very difficult to contact you to try to find remedy. Started out several months ago. Could not verify - captcha - had to use Brave to complete login to complete purchase of subscription. Happening more often as time passes. I can complete logins only when I switch to Brave or Vivaldi. Do not want to switch browsers, but becoming more and more likely.