Firefox Community Forum

Have an app with a web interface that I used for years, but not with several of the latest versions of FF. Chrome, Edge, and DuckDuckGo all show the page as expected and the page functions properly.

URL: http://127.0.0.1:8384/ Error looks like this:

Unable to connect

Firefox can’t establish a connection to the server at 127.0.0.1:[port number].

   The site could be temporarily unavailable or too busy. Try again in a few moments.
   If you are unable to load any pages, check your computer’s network connection.
   If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.

Have tried a large number of things including:

Ping works for ip and hostname, v4 and v6 Confirmed address is accessible through other browsers Disabled extensions Added exceptions in Settings for HTTPS-only mode Various settings in about:config, careful to return them to previous states when they didn't fix the problem Tried Safe Mode (aka Troubleshoot Mode) Refreshed Firefox (as prompted before uninstalling)

My last step is to reinstall, but thought I'd ask here first. Has anyone seen this before?

When using any Microsoft 365 product on the browser I keep getting a prompt to "Please sign in" although I am already signed in. I can click the Sign in button and a about:blank page pops up for a split second. Then within a half hour or so, it will pop up again. I deleted my cookies but the problem still persists. Does not happen on other browsers.

When I try to load "Comments" I get this message:

Failed loading comments! Please try again...

Trying again doesn't help.

This is a fairly recent problem

Thanks for your help.

Hi,

Not sure if anyone else is reporting this but ever since the last update - 140.0.2 Firefox Release, June 27, 2025 - many of my general sites, yahoo, news, company sites that I use everyday, do not load. I have to use Private Browsing, keep refreshing or change URL for the site to load. Anywhooos, I do appreciate you guys! keep it up!

I am trying to load a page I load everyday and am receiving the following error message:

Secure Connection Failed

An error occurred during a connection to app.seg-social.pt. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Can someone help me please. Thank you.

My very favorite browser will not open when I click the FF icon. I did another download and it will not open, as well. What can you tell me about this issue and how to fix it? An avid user for many years.

Loren Donaldson

Since the last update its a mess. My advisors are telling me its loading slow I cannot connect with them in their chat............Chrome is fine

Can someone figure this out?

Thanks

Although I have successfully logged in many times, I get an error message today: An error occurred during a connection to b2clogin.firstenergycorp.com. PR_CONNECT_RESET_ERROR Error code: PR_CONNECT_RESET_ERROR

Mozilla Firefox 115.25.0 (x64 en-US) won’t close since my previous version was updated on 6/29/25. I have tried closing it in my Win7pro Task Manager on several occasions, and had even tried to uninstall and then reinstall it from my “Programs and Features” menu, but I keep getting a message that the program can’t be uninstalled until it is first closed. Nothing I do fixes this problem. HELP

I've use Firefox or Foxfire for several years at the time I installed it I was using Windows 10. I now have Windows 11. Ever time I try to access he internet a window comes up and ask me to create an email address with Gemini. Google or Microsoft will not let me access my internet, [email removed]@nquinnlaw.com. How do I use Mozilla to access my email.

Recently I'm having an issue with Firefox that makes it so when I try to open it, it simply refuses to do so. Say on my desktop I double click the icon it will open for a split second and then instantly close and refuse to do anything afterwards. This is very frustrating, and I haven't yet discovered a solution and would really like to be able to use Firefox again. What is really strange is that this is a persistent problem not only on my laptop but at my pc as well which are two separate devices. If anybody can help or has experience with this problem to offer incite it would deeply be appreciated.

1. 1. 1. 🔷 **Issue Summary:**

While using Firefox under normal conditions, the system **freezes completely** at random times. The desktop environment becomes unresponsive, requiring a hard reboot to recover. The issue typically occurs during heavier browsing sessions (e.g., video playback or graphics-heavy websites).

System logs (`dmesg` and `journalctl`) show **AMDGPU virtual memory protection faults**, indicating a GPU-related issue triggered during Firefox usage.

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1. 1. 1. 🔷 **Log Snippet:**

```text amdgpu 0000:03:00.0: amdgpu: VM_L2_PROTECTION_FAULT_STATUS:0x00641051 Faulty UTCL2 client ID: TCP (0x8) PERMISSION_FAULTS: 0x5 [gfxhub0] retry page fault (src_id:0 ring:0 vmid:6 pasid:32776, for process RDD Process pid XXXX thread firefox-bi:cs0 pid XXXX) ring gfx_low timeout, but soft recovered ```

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1. 1. 1. 🔷 **System Information:**

• **OS:** Linux Mint 22.1 x86\_64 (based on Ubuntu)
• **Kernel:** (e.g., `5.15.0-xxx-generic`) ← *replace with actual kernel version*
• **CPU:** AMD Ryzen 7 5700U with Radeon Graphics
• **GPU:** AMD ATI 03:00.0 Lucienne (integrated)
• **Firefox Version:** (e.g., 126.0) ← *replace with actual version*

---

1. 1. 1. 🔷 **Steps to Reproduce:**

1. Open Firefox and browse modern websites (YouTube, media-rich content). 2. Use the browser for several minutes (random trigger). 3. Suddenly, the system UI becomes frozen and unusable. 4. Logs show AMDGPU VM fault and `gfx ring timeout`.

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1. 1. 1. 🔷 **Expected Behavior:**

System should remain stable during normal browser usage, especially with an officially supported AMD APU.

---

1. 1. 1. 🔷 **Actual Behavior:**

GPU driver crashes causing total system freeze, likely triggered by hardware acceleration and memory permission faults inside the amdgpu driver stack.

Hey, I have recently installed Zen Browser because of a friend's suggestion. Although I really loved the fresh vibe of the Browser in comparison to what I was accustomed of which is Chrome. But after some initial hassle of setting up the browser I figured one thing that although I have a 100Hz external monitor and a 90Hz Panel on the Laptop the Webpages while scrolling it felt that it was somewhere 45-60Hz. I tried the UFO Test as well but there I was getting 100Hz but whenever I visited any website (say LinkedIn or even Youtube) the page seem very very laggy and it made me switch back to Chrome (Honestly I wanted to stay on Zen only) but the problem forced me to switch back. I understand that the browser is still in its Beta Phase but still the experience I had it was not good. Hope I can get some resolution and hop back to Zen as I really want to.

PS - I have tried all the fixes from reddit pages, Hardware Acceleration, Smooth Scrolling, etc. none works.