Firefox Community Forum

The alert message appears everytime I go back into gmail This browser version is no longer supported. Please upgrade to a supported browser. I checked that Firefox was last updated Feb. 26. So I'm understanding what's going on. thanks

Most times pmc.ncbi.nlm.nih.gov visited this message appears "Checking your browser before accessing pmc.ncbi.nlm.nih.gov ... Click here if you are not automatically redirected after 5 seconds."

reCAPTCHA images provided but selection of images does not resolve the access issue. Not a problem with Safari

the problem started 2 or 3 updates ago. I keep hoping the latest update will fix the problem. I can still access using Chrome. I've tried clearing cache and turning off ETP

cut and paste not working on one box on ebay listing page!

ebay sell an item. opened page appears with boxes of which one is called description. This week, the cut and paste will no longer work on that box. It works on every other box on that page! Ebay say its not them.

when i try to access my Fidelity investments and Centennial banking accounts with correct username and password the screen goes into an endless loop or says "try again later. After calling helpdesks on both these accounts they say it's a Browser problem.

После обновления Файрфокс,перестала работать веб версия мах.Будьте осторожны. Что-то выглядит не так. Firefox обнаружил потенциально значимую проблему с безопасностью web.max.ru..В других браузерах оно работает.

Today following a brief power outage I was no longer able to sign in to AOL with Firefox on my desktop computer. I am able to sign in to all other apps with no problem. I tried clearing my cache, restarted Firefox, restarted my computer and spent 30 minutes on remote desktop access assistance with AOL trying to fix the problem with no success. I can log in to my account using Chrome on the desktop computer and can log in with no problem using my Android phone but can't log in using my desktop computer with Firefox. I've verified that my Firefox version is updated. I am running Windows 11 Pro.

I would greatly appreciate any helpful advice.

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

Since last update...the reaction emojis on Facebook are blacked out. The entire bar of emojis are not visible. It is all black. Yet the words are visible when hovered over. There seems to be nothing wrong with the FB site and it has been suggested it could be the browser. So if you have any reports of glitches like this ...would be nice if you could fix. Screenshot Impossible to take. Thanks

Hello everyone,

I am facing an issue with my website https://ppscjobz.pk.

The website opens normally in Google Chrome, Microsoft Edge, and on mobile devices, but some users have reported that it either loads very slowly or does not open correctly in Mozilla Firefox.

I have already checked:

SSL certificate Website hosting DNS settings Cache and cookies Mobile responsiveness

However, the issue still seems to occur for some Firefox users.

Website URL: https://ppscjobz.pk

Has anyone experienced a similar issue with Firefox? Are there any Firefox-specific compatibility settings, security policies, or browser configurations that could cause a website to load differently?

I would appreciate any suggestions or troubleshooting tips.

Thank you!

Hello everyone,

We recently received feedback from a few users who reported issues when submitting forms through Firefox, while the same forms appear to work normally in Chrome and Edge.

The website belongs to Avenue Billing Services, and the issue seems inconsistent. Some users can submit forms without any problems, while others experience submission failures or no response after clicking the submit button.

So far, we have:

• Tested the form in Chrome and Edge successfully

• Verified basic form validation settings

• Checked for server-side errors

• Cleared browser cache and cookies

Before diving deeper into debugging, I wanted to ask the community:

• What are the most common causes of form submission issues that appear only in Firefox?

• Are there any Firefox-specific settings, privacy features, or extensions that could interfere with form functionality?

• What tools or methods do you recommend for troubleshooting browser-specific issues?

Any suggestions or troubleshooting tips would be greatly appreciated.

Thank you.

I am running Windows 11 Pro and Firefox 147. Beginning the second week of Feb, Chase bank will not allow me to log into their system. They say I have to have Windows 10 or higher and Firefox 128. I am running 147. What else can I do?

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.

X.com videos won't play on Firefox, one or two play, but most won't, they simply buffer with a white moving circle without playing. I have Adblock Plus and a couple of other adblock extensions, but even when I disable those, the X.com videos still won't play. They play fine on Safari. I have Mac Book Air 2022, OS Sequioa 15.6.1

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

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,

Since Firefox's previous update, I am no longer able to log into my bank account. I have done everything suggested in the help menu. I've cleared cookies, etc. What changed overnight? I can go to Chrome and long in just fine. Just not in Firefox. Any suggestions?