Firefox Community Forum

Using Facebook creates an "Isolated Web Content" which makes the page run slow then crash.

This has been happening for years, now and means I increasingly just don't use Firefox, switching to Chrome, instead.

This affects Facebook on my Mac (Sequoia) and PC (Windows 11) machines.

Firefox worked this morning, but stopped in the afternoon. I ran an update, but could not connect to my gmail account anymore, or listen to the Radio France podcasts All this works from Google Chrome (not my default browser). All under the Mozilla VPN 2001:4860:7:150e::fc (why the IPv6 address?)

Firefox 148.0 (20260216153405) Details Installed on: 26 February 2026 at 18:55:57 Status: The Update was successfully installed

~> uptime

21:59:01 up  1:22,  1 user,  load average: 0.47, 0.38, 0.32

~> uname -a Linux tanya 6.8.0-101-generic #101-Ubuntu SMP PREEMPT_DYNAMIC Mon Feb 9 10:15:05 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux ~> cat /etc/os-release PRETTY_NAME="Ubuntu 24.04.4 LTS" NAME="Ubuntu" VERSION_ID="24.04" VERSION="24.04.4 LTS (Noble Numbat)" VERSION_CODENAME=noble ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" UBUNTU_CODENAME=noble LOGO=ubuntu-logo

Thanks, Marc

Previously I could login to www.lowes.com with no problems. For the last several weeks I have not been able to login on Firefox, but I am able to login on Chrome. I have deleted the cookies and history tied to lowes.

This is the message I receive: Sign In or Create Account

Enter your email to get started. We'll check if you have an account. Something went wrong. Please try again.

When I try to search on www.lowes.com I get the following message, but again I am able to search on Chrome

Access Denied You don't have permission to access "http://www.lowes.com/search?" on this server.

Reference #18.ebd6d717.1773082058.9f78705b

https://errors.edgesuite.net/18.ebd6d717.1773082058.9f78705b

I have emptied cache, reset everything and I still get

Access Denied You don't have permission to access "http://www.cabelas.com/home" on this server.

Reference #18.cdd11102.1773077261.fdc87252

https://errors.edgesuite.net/18.cdd11102.1773077261.fdc87252

This is from Cabelas.com but I am getting it more and more from other web sites. American Airlines, Delta.com, etc. I accessed the help and did all the steps about fingerprinting and turning off "enhanced tracking protection" and nothing helps. Any ideas? Don't like the idea of using Chrome or Edge, but Firefox is almost unusable for me now. If I have to keep using another browser for the sites, may as well just use that one only.

I cannot log into Facebook with my Firefox browser. Even though the username and password are entered correctly, the login freezes and I cannot proceed. I am able to access the site on other devices. On my laptop, I deleted all cookies, history, and cache as recommended. I am able to log in to Instagram on this device. Coincidental to this problem: when I try to view video on newyorktimes.com, the browser freezes. I cannot view content in other open tabs and must reboot the browser.

Ce matin,09/03, ORANGE a mis en place une nouvelle messagerie qui ne passe plus sur FIREFOX mais que j'ai retrouvée par un autre navigateur. Tous mes contacts avaient disparu ainsi que les messages reçus ou envoyés.

When I try to make a Google search I get the following message, "I'm not a robot" with a reCAPTCHA: "Our systems have detected unusual traffic from your computer network. This page checks to see if it's really you sending the requests, and not a robot. Why did this happen?". This happens on Firefox, but not Chrome or Edge. If I 'Allow' Google in the 'Exceptions - Cookies and Site Data' then I do not get the message, but it takes several seconds for Google display the resulting page. However, if I delete the cookies/cache the message will return and I have to redo the reCAPTCHA. I have scanned with Malwarebytes, Bitdefender, Hitman Pro, Trend Micro House Call and Microsoft Defender, nothing detected. Running Win 10 (64) with 'Extended Security Updates', Firefox 147.0 (64), no additional Extensions or Plugins. Also I uninstalled and reinstalled Firefox.

I can't always sign into my bank with Firefox but can with Safari. Sometime it works and other times it doesn't and I get an error message. If I switch to Safari, I never have a problem signing in. Can you tell me what's going on and how to fix it?

Also, I can't do health video calls with Firefox. I can see the person but they can't hear me. I've tried everything I know to do the get it working to no avail. However, if I do a Zoom teleconference, I generally don't have any problems. The problems come when my doctor's facility sets up the video call. I don't know what system they use, but it's odd that it only works partially (video and no sound). I can do the video calls on my cell phone with no problems. It's only with my desktop, which I prefer to use because the screen is much easier to view. Any ideas on how to fix this problem?

Thank you, Deborah Higgins dlhig33@yahoo.com

Access Denied You don't have permission to access "http://www.kohls.com/" on this server.

Reference #18.d11c2117.1772992089.3a8acc1f

https://errors.edgesuite.net/18.d11c2117.1772992089.3a8acc1f

Have run thru all suggested fixes clearing cache / cookies using private mode disabling extensions / ad blocker / tracking protection

other retail sites and browsers fine

bold textI have created a new profile, uninstalled Firefox and reinstalled, flushed the DNS, always deleted cookies et al on closing. When I try and sign on I get a msg saying site unavailable, but when I go to the laptop sign on without any problems. Also on my desktop if I use Edge to logon to the site I am successful.

Gentili Signori, Sempre più spesso, quando si aprono le pagine di pagamento online, il browser non è più in grado di visualizzare correttamente la selezione dei metodi di pagamento o il layout complessivo della schermata di checkout. Questo sta diventando piuttosto frustrante, dato che sono un fedele utente di Firefox da molti anni. Tuttavia, questo problema mi sta spingendo a scegliere un browser che funzioni davvero, come Google Chrome, cosa che trovo piuttosto fastidiosa. Ci sono chiaramente aggiornamenti mancanti e lacune tecniche che stanno diventando sempre più profonde e evidenti, il che mi porta a credere che il vostro progetto non venga più aggiornato con la costanza che dovrebbe avere. Ciò è particolarmente preoccupante considerando che il vostro cliente più importante è proprio Google, che vi paga per rimanere in vita. Grazie.

Access Denied You don't have permission to access "http://www.godaddy.com/" on this server.

Reference #18.acf7d517.1771548295.4f66cee0

https://errors.edgesuite.net/18.acf7d517.1771548295.4f66cee0 is what I get when going to https:\goddady.com as of today. Running on Windows7 (no, I won't upgrade). Tried a variety of changes. But Chrome works fine. Any suggestions?

Since the 148 update, copying and pasting has been completely broken in google docs, sheets, etc. I get an error every time I try to and am forced to reload the page after which nothing has even been added to the doc. I know I am not the only one with this issue. It happens across different OS'es. Very very frustrating as I have to switch to a different browser entirely in order to copy paste, which I need to do frequently. https://connect.mozilla.org/t5/discussions/latest-update-made-google-drive-shortcuts-break/td-p/118985

When I try to log into Tangerine bank I get the error. "We're sorry for the inconvenience. This function is currently unavailable. Please try again later."

This issue started Oct-13-2025 and it appears to work when using Firefox ESR 146.01 but not the regular Firefox 146.01 versions. Tangerine is not giving me information on the error and I was wondering if there is a difference between the ESR and regular version that might clear up this issue?

Couple of updates back, Firefox quit working as before on a particular webpage. See attached images. Describing the webpage, this is from an embedded server on a Burk Arc Solo radio transmitter monitoring and control system. Accessing the webpage allows control over the transmitters in addition to getting readings on the performance of the units. The Edge browser shows how it's supposed to look, meter names and data values, they self refresh and show changes dynamically. Why is the Firefox no longer doing this? Note: this is at a remote site using remote desktop to access the machine watching the Burk. The machine is Windows 11.

I can access my credit union using firefox on my phone, or even this computer when using MSN. I can NOT reach my credit union on this computer using firefox. I get a 403 forbidden message.

When I went into my email this AM, a line above it stated that my browser no longer is supported. I have a desk-top MAC OS operating system and I have used Firefox to get into my email for a very long time. What gives? Thank you.