Firefox Community Forum

Hi. Recently I have been having issues connecting to various websites including ones that I have connected to in the past. The first one that I noticed that I could no longer connect to was The Trek (https://thetrek.co/) which I have for several years had no issue connecting to. Now it is happening with various other websites. I want to continue to be able to access the blogs etc. on their website. Thank you!

Server Not Found

Firefox can’t connect to the server at legalfolder.sce.com. What can you do about it?

   Check to make sure you’ve typed the website address correctly and try again in a few moments.
   Check your network connection.
   Check that Firefox has permission to access the web (you might be connected but behind a firewall).

I start FF in safe-mode. I open a local page which includes only one URL. When I hover on this link I see (`tcpdump`) a DNS lookup being performed for this domain. I followed the suggestions from Mozilla but I still see this.

How do I stop this access.

I use FF "156.0 (64-bit)" on Fedora 44.

TIA

Firefox upgraded this morning. I can't connect to any of my URL's. I have rebooted my computer, went and closed all open Firefoxes, and Run as Admin. I can connect changing to Run as Admin once then I can't connect to anything else. If I open Chrome - there is no issues. How can I get back to where it worked?

This is the second day my Firefox browser has periodically dropped connectivity on my Mac. When I switch to Chrome, it connects fine, so it's clearly the browser, not my WiFi. I updated my Mac to the latest software. I tried changing proxy settings and deleting cookies, but nothing has helped.

As of Aug 23rd, Firefox no longer connects to the internet (not site-specific) with this message: Unable to Connect. All other browsers work with fast loads. FF has been incredibly slow loading pages for weeks now but it would eventually connect until today. It is not a network/firewall issue as I've checked to make sure all was set correctly. I have cleared cache, turned VPN off, refreshed app, uninstalled/reinstalled and nothing has changed.

If I find the same tomorrow, I will just have to stop using altogether and choose another default browser as there is no point in a browser that is slow and unreliable. It's a shame since I've been using FF for many, many years.

when i work in any web page and i try to back to previous page browser disconnect the page and shows loading page error (problem loading page). Is this a browser problem or any network issue , after update this shows multiple times when i try to go to previous page . 'problem that i face ' Server Not Found

Firefox can’t connect to the server at scholarship.up.nic.in. What can you do about it?

   Check to make sure you’ve typed the website address correctly and try again in a few moments.
   Check your network connection.
   Check that Firefox has permission to access the web (you might be connected but behind a firewall).

Learn more… Try Again

I routinely am not able to open registration to conferences or other links to long web addresses. This screen message from Firefox appears:

"Server Not Found

Firefox can’t connect to the server at gi9zc6sab.cc.rs6.net. What can you do about it?

   Check to make sure you’ve typed the website address correctly and try again in a few moments.
   Check your network connection.
   Check that Firefox has permission to access the web (you might be connected but behind a firewall).

That message appeared for this https://gi9zc6sab.cc.rs6.net/tn.jsp?f=001T5esaGIPGizJmjnFH_ZN0rs2nRmFvfg68IUb5lZCQmIAPWdC8rFl0Y1xbniCS0F-q4zVJMAgN3whbcuThS0wDfZevAHUBUCIbKas_wNb6IUJRAHRhiCDsq5_kmYDK-Gwv2w6vv76FnR39uAtOCKdr_ttlxoNJN7WIwMD4ZlQBENHQ920CL4dvvDmhESGhC9TSU-FvwD5zS2y1m0fjSgUiuFw0HzjsTjKMljdebV-fUXu5pxZFF4nQqJ156RWpzEzobANY217MXdmMlwqBqX_1EoztmWAB2LfNJz-Z-9ZVVejG_saHWKFvdbZ2BrQlX4Y1fpYrTz5Xzx8AvB4ybvXJA==&c=yp6c6A5fB7yDTLMvkly_lvoPm2JVn0awZB8o-xRVaJpx_MPafsrX3A==&ch=c_dP5vdY4uwNFMGk8OzrTttJtbNgGv0RSdMckxp2d-NbUWrheIutEQ==

That long link was embedded in this conference announcement:

Join the Connecticut Institute for Resilience and Climate Adaptation

for our annual summit at the

UConn School of Law, Hartford, CT

Friday, November 20, 2026

9:15 am – 2:30 pm

Agenda

8:45-9:15: Registration and Coffee

9:15–9:25: Welcome Remarks

9:25–9:50: CIRCA Update Presentation

9:50-10:35: Legislative Implementation Presentations

o 9:50–10:00: Resilience Improvement Districts

o 10:00–10:10: Stormwater Authorities

o 10:10–10:20: Climate Change and Coastal Resilience Reserve Funds o 10:20–10:35: Question and Answers

10:35–10:45 Break

10:45–11:00: Keynote Address

11:00–12:00: Legislative Panel

12:00–1:00: Lunch

1:00–2:10: Resilience on the Ground and In the Water Panel

2:10–2:30: Networking

Since space is limited, registration will close on November 10, 2026.

Please join us to work toward a more Resilient Connecticut!

EVENT WEBSITE

For more information and