Firefox Community Forum

at least 2 times a day firefox looses internet connection, and my internet is very strong and right next to my laptop, this is a problem i have had the last few months, but getting worse

NOTE: I have marked this as "Solved" because I figured out the problem described below, and I fixed it. See my following message here for a description of my solution.

Original message starts here ...

I'm using Firefox 144.0 under Debian Linux. I've used Firefox on this machine for years with no problem. Firefox can easily connect to literally thousands of web servers on the internet, both via HTTP and HTTPS.

But now, I'm having an issue:

I started running a web server on the same machine that Firefox is running on. This server only listens for non-HTTPS connections on port 80. I am not using any proxy server with Firefox.

I can easily and directly connect to my local web server's pages from my local machine from Chrome, w3m, curl, and direct telnet connections to port 80 ... all of which are addressing the publicly accessible domain name for my local web server. However, However, Firefox refuses to connect to any URL's on my local machine, and it gives me the following explanation:

Unable to connect

Firefox can’t establish a connection to the server at [ my server's domain name ].

   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.

In Firefox, I have all auto-forcing of HTTPS disabled by means of Don’t enable HTTPS-Only Mode turned on.

I get the same error in Firefox whether I connect via a URL like "http://MYFULLDOMAINNAME" or a URL like "http://AAA.BBB.CCC.DDD", where "AAA.BBB.CCC.DDD" is my machine's publicly accessible static IP address and "MYFULLDOMAINNAME" is the long-standing, publicly accessible domain name for my machine ... both with and without a suffix of ":80" on the supplied URL.

And again, all other browsers on my machine have no problem whatsoever connecting to my own local web server on this same local machine of mine using those same URL's.

And all browsers (Firefox and otherwise) that are running on other machines all over the internet have no problem connecting to that same web server via the same URL's that I described above

Also, I have no firewall rules on my machine which would block access to my own machine's port 80.

What could be causing this error in Firefox, and what might I be able to do to fix it?

Thank you very much in advance.

UPDATE: Just a bit more information. Looking at the web logs, I see that Firefox's request never even reaches my local web server. In other words, Firefox itself is not even trying to make a TCPIP port 80 connection to my local web server in the first place

Hi I have switched to Mozilla from Chrome as I can’t update latest OS for my Mac. I can only browse internet intermittently and just want to ask if there are any settings I need to change on Firefox? Thanks Aidan

Using Firefox as my browser, I have over the last few days been unable to maintain a connection with the internet.

You will please excuse me as I am a 70 year old with limited understanding of the interaction of the internet and its terminology.

A couple of things you may need to know to offer me advise I just received a refurbished Dell laptop with windows 11. I'm using firefox as the browser comcast xfinity is my ISP I subscribe to NordVPN and NordPass

I am having a problem maintaining a connection to firefox.

I can look on the taskbar and see that I am connected via Comcast and the NordVPN and yet I will have displays of "you are not connected to the internet" or similar wording. If I need to include that, at these times, I look at the task bar and I confirm that I am connected.

In addition to this Windows 11 laptop, I have two active android phones. My Gmail, last I checked on the laptop was displaying vividly inaccurate time stamps to incoming emails. My phones however show the emails with accurate timestamps. (A difference of 4 to 6 hours like EST New York to middle of the Pacific Ocean)

I do have photos of these events, screenshots of sorts... but they're on the phone. I'm currently using the firefox browser to offer this post/question, but I sit in anticipation of it acting erratically. Finally I have downloaded a different browser to use while the firefox issue is being trouble shot.

Rather than add more possibly irrelevant information, I'll send now and let the community ask me questions.

Al R

the msg returned

Hmm. We’re having trouble finding that site.

We can’t connect to the server at marvelsearch.com.

If you entered the right address, you can:

   Try again later
   Check your network connection
   Check that Firefox Developer Edition has permission to access the web (you might be connected but behind a firewall)

i am using a local dnsserver and firefox is connected to it. is this the reason? if so how can i disable this? other firefox features are working beautifully.

The connection has timed out

The server at eofficepwd.kerala.gov.in is taking too long to respond.

   * itemThe 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.

I have been using Firefox for last couple of years. Two days ago I got a bunch of updates, which reminded be of how AOL used to update, ie days of confusion.

SO NOW I CANT EVEN GET ON INTERNET! So here am a few days before Christmas, and can't access my bank account, or stocks. And I had no idea Firefox was going to institute these changes.

I can't express how stupid these unauthorized changes have been (without notification!) to users. Please remove this crap ASAP, and demote the group that thought a week before Christmas was a good time to make changes.

Hello. For years I've been successfully using your browser. Now it keeps giving messages that say "Try Again" .

We can’t connect to the server at links... bla blah

Server Not Found

...PLEASE ADVISE

Why does Firefox, AND ONLY FIREFOX 145.02 fail to load ANY AND ALL websites after Windows 11 pro x64 startup? I have to close Firefox, restart it, then close and restart it at least 3 times before websites will load fully. AND IT IS NOT A WINDOWS 11 PRO x64 issue.

Thanks, as always, I appreciate any help,

Oldheart1943