Firefox Community Forum

I am now receiving this notice for more and more commonly accessed websites. I get the message if I have https only selected or not selected. Currently receiving for Lowes, Home Depot, American Airlines and more. I can go to a Firefox 135.0.1 browser on a separate desktop accessing the internet through the same router and do not have issues. I suspect I have been upgraded by Mozilla into a less functional browser version for whatever reason that Mozilla does this.

Sample Messages:

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

Reference #18.ea382f17.1754673395.2abc2b02

https://errors.edgesuite.net/18.ea382f17.1754673395.2abc2b02

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

Reference #18.89f8cd17.1754677280.265017bc

https://errors.edgesuite.net/18.89f8cd17.1754677280.265017bc

https://www.datilcam.com/weather/index.htm

The website you are blocking is on my domain and is my website. Why are you blocking it? Stop blocking it!

I am experiencing an issue where Google.com (other google domains work fine) will not load in Firefox, resulting in an infinite loading loop. Other browsers on the same system (Brave) work fine.

Here are the steps I have already tried:

Reinstalled Firefox completely

Removed Firefox via sudo apt remove --purge firefox -y

Cleared all user profiles and caches: ~/.mozilla/firefox, ~/.cache/mozilla, ~/.config/Mozilla

Reinstalled via Flatpak

Tested network connectivity outside Firefox

curl google.com works correctly

DNS resolution works via getent hosts google.com in the host system

Checked proxy settings

Ensured “No proxy” is selected in Firefox → did not resolve the issue

Tested in Safe Mode (disabling extensions)

Problem persists, so not caused by extensions

Tried disabling IPv6 inside Firefox

network.dns.disableIPv6 set to true → no effect

Cleared DNS cache inside Firefox

about:networking#dns → clicked “Clear DNS Cache” → no effect

Disabled DNS-over-HTTPS (Secure DNS)

about:preferences#privacy → “Use secure DNS” → disabled → no effect

Disabled HTTP/3 (QUIC)

network.http.http3.enabled set to false → no effect

Verified Flatpak network permissions

flatpak info --show-permissions org.mozilla.firefox shows network access allowed

Inside the Flatpak shell:

flatpak run --command=sh org.mozilla.firefox getent hosts google.com

→ returns only IPv6 address: 2800:3f0:4001:839::200e google.com

youtube has failed to open fr 2 weeks now, it was working well before but on opening it of recent, it displayed this message below till now yet other tabs open well and my internet connection is stable

Unable to connect

Firefox can’t establish a connection to the server at www.youtube.com.

   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.

Ubuntu 22.04.5 (kernel 5.15.0-153) Firefox updated from 142 to 143 automatically by snap.

In version 142 and older, html file with image source pointing to local (remote) network image file displays properly.

In version 143, this does not work anymore. I tried changing the image to point to a local computer file and it works.

In verion 143, If the link to the image is typed directly to the address tab in firefox, it works.

Perhaps some config setting need to be changed? Hope somebody can help.

Thanks in advance.

firefox network tab shows NS_ERROR_CONNECTION_REFUSED

I'm building a website from scratch and its going great. I just tried to implement a CSP and it worked except for one small section of my website that allows a user to upload an image and that image is supposed to be displayed back to the user. Anyways long story short the CSP blocked me so I tried to whitelist data: and it still didn't work. defeated I removed the CSP from Nginx to work on it later but when I went to try and test again I get this error. ``` Content-Security-Policy: The page’s settings blocked the loading of a resource (img-src) at data:image/webp;base64,UklGRqbeAABXRUJQV… because it violates the following directive: “default-src 'self'” ``` I have confirmed with Curl and by inspecting the network tab that there is no CSP included in the headers anymore. I have restarted Firefox, created a new Firefox profile, and cleared my cache to the end of time and yet still the error persists. I don't know where or how Firefox is storing website headers but they persists and also apparently work between profiles an implication I'm not going to delve into here. If someone could point me to the file where the headers are stored so I can delete it that would be wonderful.

specs Qubes OS 4.2 Mozilla Firefox 140.4.0esr

I can not open : www.mobile.de What is here going wrong ??

Access denied  ?? I cannot understand this ?? Thanks for help, rainer banspach

why did this error occur, wven tho https - only mode was disabled. and i wsa not not able to login the mathworks.com reset password webpage, i wsa able to sign in. this did not occur on firefox. i think it has something to do with hsts Access Denied You don't have permission to access "http://www.mathworks.com/mwaccount/account/resetpassword" on this server. Reference #18.ae014017.1777097497.efd9222 https://errors.edgesuite.net/18.ae014017.1777097497.efd9222

After recent update, I can not browse any addons. The site https://addons.mozilla.org does not open, shows the connection timed out. I uninstalled and reinstalled firefox deleteting all firefox related files. The problem still persists. Other than this all the using browsing I do are all working fine. Just this extensions I cannot browse. When I click the extension icon by default it shows some extensions, I can Install them. The problem is I can not browse them. Even the recomendation tab is also empty.

PS: I am using firefox on manjaro linux.

Mozilla repeatedly fails to connect to the server at https://hqpaperround.net/ which I need daily. It connects to any other website I request. I am using an old laptop after my shop desktop broke down. It has never connected to that site. Can you suggest why?

Non of the torproject.org site load on firefox they timeout. How do I access the torproject.org domains?