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Secure connection failed and Firefox did not connect Firefox Last updated: 01/16/2024 39% of users voted this helpful

This article explains why you may see a Secure Connection Failed or a Did Not Connect: Potential Security Issue error page, and what you can do.

   If you see a Warning: Potential Security Risk Ahead error page, see What do the security warning codes mean? and How to troubleshoot security error codes on secure websites.
   To troubleshoot other error messages, see Websites don't load - troubleshoot and fix error messages. 

Table of Contents

   Secure connection cannot be established
       Secure Connection Failed
       Did Not Connect: Potential Security Issue
   Website issues
       TLS version unsupported
       HSTS required
   Security software conflict
   Incorrect system clock
   Other secure connection issues

Secure connection cannot be established

When a website that requires a secure (HTTPS) connection tries to secure communication with your computer, Firefox cross-checks this attempt to make sure that the website certificate and the connection method are actually secure. If Firefox cannot establish a secure connection, it will display a Secure Connection Failed or Did Not Connect: Potential Security Issue error page. Secure Connection Failed

A Secure Connection Failed error page will include a description of the error and a Try Again button. There is no option to add a security exception to bypass this type of error.

Fx97SecureConnectionFailed ~~~ The url gives me this can you help please its not bitdefender total security blocking it I dont think https://support.mozilla.org/en-US/kb/secure-connection-failed-firefox-did-not-connect?as=u&utm_source=inproduct

Hello, I noticed that some plugins that claim of MPL 1.1 License is actually close source, furthermore, some of those even have “Recommended” tag. Since this is a big misleading considering these plugins actually have very broad permissions, I consider those plugins as abuse. I reported them 1 or 2 months ago but no response. I don't want to list those names out in case it was just the author selected a wrong selection, but i do believe that the author should correct that, and the more important thing is Mozilla should check this more carefully.

The horizontal scroll bars had been missing for certain URL in firefox since mid last year 2023. I just downloaded the latest version for windows 11 and it is still missing.

I have checked the settings > General > browsing > related to scrollbars and they are all checked, namely: - use autoscrolling - use smooth scrolling

But it is still missing! I generally use firefox for my work and Google chrome for my personal use - to compartmentalize my browsing content/history. Now I will have to ditch firefox and use chrome only for both work and personal if this is not fixed.

My Thunderbird email account always asked for a password to contact host. This request for password has disappeared the last coupleof days .The email is working fine. A couple of weeks ago I had a request from mozilla thunderbird to agree to an update alowing change in the computer . I agreed. Could this resulted in loss of password request ? I would like what happened . Thank you for your help. Kind regards Katrina

Why are my personal folders NOT shown when select Move To then under Folders it only shows Trash ? A picture is worth a thousand words, so please see the image below:

Debugging message filters and want to see the log. From message filters window I click box "Filter Log". It brings up the small config box of which a pic is attached. I can't find anyway to actually see or access the log. It must be hiding here somewhere ? ?

I have tried to clear the log so it is small in case it is large and takes long to load as I've seen elsewhere. No change.

I try to look this the "Activity Manage" which has some log like error messages but it is a mess of unordered seemingly random successes and some failures. This is another topic.

So, any guidance on how to use the filter log would be greatly appreciated.

How to created new mailing list. The online instructions, last updated 2015, say : "Create a mailing list

   Open the Address Book.
   Select File > New > Mailing List.
   Enter a suitable name for the mailing list. 

but "mailing list" does not appear when i select file> new

Code sent to my email about firefox pw change didn't work? tried 5 times!!! legally blind pls help me thx!!!

6765771967657719 now code won't paste? I had 10 min.s? 676577196765771956102634 I think by memory cause copy and paste won't work!!!

Thanks Deborah/Debbie Davis

1. I use a startpage called IGHome. That address is set as my default to open to. When it opens I notice that the address is not secure. When I add https:// in front of it, it does in-fact open, which is good. Even though I added that prefix to the address on the Internet Options page in my system, it still continues to open the old 'unsecured' way. I also cleaned IGHome out of my system before resaving it. Is there anyway to get my system to recognize the secure version? And, if I open any sites with passwords on the unsecured version, they DO open as secured so in reality I am still safe (even though my system is not opening the https site).

2. Also, on my IGHome page, there are 'Show Your History' and 'Show your Bookmarks' tabs at the top right in the toolbar. When I used to open them they would open almost flush right. Now they open almost in the center. Is there a way to make them open in their previous flush right location again?

Thank you in-advance for any time and assistance!

Sincerely,

Dana Desjardins Email removed for privacy

Help! My main email address and another one no longer are listed when I open Thunderbird. I tried to reinstall my main email but was prompted that it already exists. I have not received any email since 7/23/2024. My main email is belaflom@belaflom.com.

Hello,

I would like to complete overhaul my pc again and for this matter Im quite dependant on my firefox saves of cookies / bookmarks etc.

the only issue is, the password i created using my account years ago is something i have absolutely no idea of anymore, ive been on the same computer for ages so luckily i never needed it again to sign into firefox, so you can probably see my issue here.

Is there any way that i can provide enough evidence that this is my account that i can finally reset this password and be able to reset my pc?

My house was hit by a lightning strike and it blew out my computer. It looks like both the drives in that computer are readable. So I am wondering how I can get all my email back into thunderbird. It was a pop account. All email was saved to computer. I'm using windows 10. I tried to just copy the old file at Users/Mike/AppData/Roaming but that didn't work. It didn't bring back all of the folders. Please let me know if there's anyway to rebuild all the folders and emails. Thanks in advance for your help. Mike

hey, After the last 2 updates, my quick filtering (ctrl+shift+K) broke. It works very slowly, it freezes the entire program. Is there any way to fix this? I work on Windows 10, regularly updated

I have had it up to here with Firefox. I am madder than a hornet. Currently, I am unable to access my Outlook email and DirecTV in my Firefox browser, though I can in other browsers I have. Sometimes, I can't even sign into Ebay.

The DirecTV problem goes back at least 4 years to a different PC, so I have had this same problem on two PCs, therefore it can't be my PC. Besides, why can I access DirecTV on my Norton private browser and not on Firefox? I get the following error window:

    An error occurred while processing your request.

    Reference #219.b2173e17.1724008787.36e807

    https://errors.edgesuite.net/219.b2173e17.1724008787.36e807

The differing Outlook problem has popped intermittently over the past few months, but has happened more often lately. In that problem, the sign-on button is not activated.

Similar with the Ebay sign-on problem, except Ebay thinks I'm a bot and won't let me go any further than that perplexing error message.

I'm in the process of gravitating to the Norton private browser. I've already got all my bookmarks moved to that browser. At least Norton works for these three websites.

To put it bluntly, I think Firefox is a big stinking pile of horse manure. Firefox makes it EXTREMELY difficult to find out solutions. I believe Firefox actually WANTS it to be difficult to use. Why else would it be so hard to find out things? For example, instructions tell me to do something in some menu or click on some button, but the menu selections or buttons usually aren't there. I go round and round through the same blankety-blank webpages. I feel like a June bug constantly circling round a light. Even wanting to simply restore Firefox to original settings requires pulling eye teeth.

It took me over an hour to finally restore Firefox settings yesterday, which fixed things for THAT DAY ONLY. Today, the same problems cropped back up again.

I've had it. Unless I'm given some solution THAT ACTUALLY CONTINUES TO WORK, I am quitting Firefox.

Have a good day. I sure as hell haven't.