Firefox 커뮤니티 포럼

shreeman

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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

I used to be able to log into Peacock without issues. Either Firefox changed something or Peacock did. But it no longer works correctly. I can sign in, but the main menu appears for a split second, then the screen goes black.

after last update stop working .if I use ctrl v it will paste in. When i try using the mouse it doesn't have paste in the block that pops up.

I can click and paste in the condition box but not the description box.

If I use edge it works. I don't want to use edge

I have also cleared cookies and cache

One of my bookmarked website (www.athletic.net) stopped loading text or graphics this morning. When I go to the site, all I see is a blank page.

I downloaded Google Chrome and can see the webpage loads properly. I also checked with my anti-virus (Bitdefender) and worked with their customer support to make sure their recent update was not causing the problem.

I have tried clearing the cache, rebooting the computer and other recommendations from the Firefox support site but the blank page problem persists. I have the most recent Firefox version 151.0.2 so am not sure what is causing the problem.

Firefox will not allow signin to OptumRx, a well known pharmaceutical supplier. Simply doesn't work with their system, which uses login.gov. When I tried with MS Edge, NO problem!

everytime i upload a picture to some websites like tiktok/microsoft or even firefox, my images' quality gets decreased like from 2160x2160 to 230x230 idk why help me, firefox if you see this, FIX YOUR BROWSER ITS UNUSABLE

I have logged into TinyURL.com MANY times using Firefox. Now, I get a Cloudflare Validation Error when trying to do so (see attached screenshot/snip).

This was done in Troubleshooting mode, but is the same in standard mode, though I have no extensions enabled. I've tried turning Protection Tracking off; no luck. - We use ZoneAlarm, but the Web Secure functions are all disabled. - I have the same issue on 2 PC's, one Windows 10 and the other Windows 11, 64-bit. - I'm on FF release 150.0.2 - 64-bit, and both Windows installs are fully updated and kept that way. - I've reached out to TinyURL in hopes of resolving the issue. They suggested many of the above steps but not resolved this issue. - HOWEVER, I've found that login via Google Chrome IS seamless - no issues.

What is it with Firefox that it's having issues with the Cloudflare "Human" check? I've checked the Cloudflare site; all conditions are good, and this very setup passed the "Turnstile" check.

FF is my #1 preferred browser, so please look into this. I see that others have posted similar issues over multiple years here (but a search of support articles didn't find one . . .)

Thanks,

There are certain websites that, on firefox only, display apostrophes and quotations as Russian letters. For example, on google docs, if I type "He's such a great friend" it will display уHeТs such a great friendФ. When I open the document on the app, it is normal, but I haven't been able to figure out why it does this on my computer. I use Mozilla Firefox for Fedora 149.0.2 for reference.

I could not get into my Fidelity Investments account today. (I signed up last week using same computer w/Firefox) I got to the login page but Fidelity gave me a "can't complete at this time, try again" notice. So I called them up and they suggested I use chrome. I don't want to use chrome. I tried reentering with the VPN off and on. No go.

I have no idea what is happening. Whenever I try to use youtube on firefox the site just freezes. I can still scroll up and down, but nothing that wasn't already loaded loads, I can't click on anything, and nothing except scrolling does anything.

The reload, home, and even screenshot buttons don't work in these frozen youtube tabs. The only way to do anything is to open a new tab and close the frozen youtube one.

Youtube is completely unusable because of this.

I turned off every single addon, I restarted firefox, I restarted the entire computer, I tried in a private tab. It still freezes every time.

I don't have a VPN, I do not have the problem on any other website (even other media-players), and I don't have a clue what is happening.

I do have youtube premium.

Any help would be appreciated. I need to watch stuff for my studies but I just can't

Operating system: Windows 11

recent firefox update can no longer copy and paste when creating a blog post in Squarespace, I have been using squarespace for around 15 years for my websites and I have never seen this issue, Firefox 15.1 installed and all of a sudden when trying to create a blog post in Squarespace, when I right click a text box pop up and it no longer says paste so I can no longer copy and paste text - this is more than a little annoying, you will not be surprised to know that I am now using Chrome to create my posts, there is no issue in chrome. I am a firefox geek! how can i solve this problem, I just did another update from Firefox, the issue remains I have been using computers for 40 year so I am not a novice but software glitches, I am lost

When I try to attach file via drag & drop, the Firefox always display "Download file" as attachment. I don't know why because it properly worked before. but after some updates, drag & drop is not working.

The version of Jira at my office is not changed for years(v8.12.1#812002-sha1:7c28d59) and drag & drop is working via Chrome, Edge and etc.

I have a ASUS Vivobook S15 with snapdragon cpu

Some homepages would not come thru it is the same as i can connect to from my win10 computer without problems If you see bad spelling, i have tried to add on English langugare, bur it does nor work

Win11 , Firefox 152 allways updated

Hello,

For few days, it's impossible to connect to FACEBOOK. I have the latest version of FIREFOX, but I have to use another web browser (EDGE) to connect to FACEBOOK. The problem is the same with my two computers with the latest WINDOWS.

Thank you for your help to solve my problem

Looks like there’s a problem with this site

Firefox can’t connect to the server at dlhd.pk

No such problem on Edge !!!

Hello brothers and sisters, i am need help! I'm experiencing performance issues when surfing the 9GAG website. The amount of RAM consumed by this page is growing exponentially. It's gotten to the point where this tab can consume up to 5GB of memory, and that's not the limit. This issue hasn't happened before. I can't figure out what's causing it.

What I did to fix the problem: I reinstalled the browser. I reinstalled add-ons. I reset my old profile, saving only bookmarks and passwords. I reinstalled the operating system. None of this helped. However, my friends don't have this problem with this site. Please help.

Prior to the latest release I could easily log into the site https://fun.chicagotribune.com/game/tca-jumble-daily. I can login in but once at the player page I must enter command shift R to reload the page afresh. The response is very slow relative to the previous edition of Firefox. There are other examples I could site with similarly odd behavious. Just today I tried to make a reservation with resy. I got a total runaround to my entries. I eventually gave up and used Safari and everthing proceeded as expected and I made my reservation.