Firefox Support Forum

Did Not Connect: Potential Security Issue

Firefox detected a potential security threat and did not continue to www.google.com because this website requires a secure connection.

What can you do about it?

www.google.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

The issue is most likely with the website, and there is nothing you can do to resolve it.

If you are on a corporate network or using anti-virus software, you can reach out to the support teams for assistance. You can also notify the website’s administrator about the problem.

When clicking advanced button there is no way to proceed:

Someone could be trying to impersonate the site and you should not continue.

Websites prove their identity via certificates. Firefox does not trust www.google.com because its certificate issuer is unknown, the certificate is self-signed, or the server is not sending the correct intermediate certificates.

Error code: SEC_ERROR_UNKNOWN_ISSUER

View Certificate

In making this post I am following instructions found at https://support.mozilla.org/en-US/kb/troubleshoot-firefox-crashes-closing-or-quitting, which include the statement "Fill out the Details section of the next page..." which seems to refer to THIS page, but I see no Details section here, so I'll just put the details where they seem to apply.

Firefox Version 102, installed today, shows the same symptom I've been seeing for several weeks, perhaps months: whenever Firefox is closed, a crash report popup appears on the screen (after a minute or two). I've been submitting these on a regular basis and hoped that Version 102 would contain a fix, but the issue continues.

So today I've created some minimum-to-reproduce examples, in each case using the same setup, but closing Firefox in a different manner:

Setup: Firefox for Windows V 102 installed today. Windows 10 is up to date. I open Firefox in troubleshooting mode, which displays my home page, located on a shared server that I use for a website and other stuff I want to be able to access from anywhere. Nothing exotic, just a list of links. That works.

Then, without doing anything else (for purposes of these tests), I close Firefox via one of the following (with associated report ID):

• Click on large X in the upper right corner of the window.

   bp-e31ef7d6-8d17-41c8-a204-0e53c0220630e

• In the window menu, select File > Exit.

  bp-d15f97c8-267f-4550-9d42-69eb70220630

• On the task bar, RMB on Firefox, then select 'Close window'.

 bp-39756c12-ccb7-4f83-998a-ec8030220630

My system is an HP laptop with AMD Vision A6 processor. My wife uses a Dell all-in-one on the same wired network and does not experience the crash-on-close symptom. This makes me suspect my hardware, but just tested with other browsers:

Chrome - Blocked my home page (never saw that before, but I use Firefox...) until I removed the block from Settings. Closed without crashing. Edge - Updated itself, then gave me the same "Not secure" warning as Chrome, but displayed the home page anyway. Closed without crashing.

In all cases, the link to my home page is specified as http://, not https:// My wife's system is set up the same way.

My question: How can I get Firefox to close gracefully, without spitting out a crash report 1-2 minutes later? Note that I can OPEN Firefox and use it for hours without incident, but if I close it and do something else, when I close THAT, there's the Firefox crash report window underneath.

I just ran the w3.org validator on my home page and I see that a few errors have crept in,. mostly unencoded ampersands. I'll fix those, but if that caused a problem for Firefox, would it wait until much later to crash? And why only on my system, not my wife's?

Suggestions?

I am using Ancestry.com - and Firefox keeps trying to autofill fields it has no business with or understanding of. While autofill is handy at times, it's a downright nuisance - making my research way more tedious because I have to continually erase its autofilled data as erroneous. Is there a simple and temporary way to stop autofill?

Why do I get " 403 - Forbidden: Access is denied. You do not have permission to view this directory or page using the credentials that you supplied." when I try an access doddrv.com?

Not able to sign on. Receive the following message: Firefox - Entry Point Not Found

SECMOD_locked Module Has Removable Slots could not be located in the dynamic link library C:\Program Files couldn't load XPCOM Mozila Firefox ul.dll

Hi there,

I would like the option "Delete cookies and site data when Firefox is closed" to be enabled, but it appears that Firefox is actively undoing this change. If I go into settings and check this box, it will appear to be successful and remain checked until that session is over, but if I close & restart, the box is always unchecked after restarting. Is this a bug in the build of Firefox I'm running (102), or is this behavior intended?

Thank you!

Hi,

I am unable to use the screenshot feature since the update to 102.0 and I don't know why. So far it always worked. I have updated the screenshot item via customizing the toolbar, still it does not respond.

Have you got a solution that works?

Thank you.

Sincerely,

B. Struk

Absolutely no websites seem to ask the user for allowing notifications, nor can i add them to my notification list myself (not a firefox feature). I also have no way to enable Firefox's notifications in Windows 10's action center, for there is no option.

Dear Mozilla Community,

Our company use a web application whiches we can connect to customer servers via RDP (Remote Desktop Protocol). The web application uses Spark Gateway. The problem is that if we use the web application with Firefox, we can't use clipboard function.

The error codes in the browser console:

Uncaught DOMException: A network error occurred.

  httpGet https://application.ourcompany.com/hosts/gateway/html/hi5core_min.js:68
  getClipData https://application.ourcompany.com/hosts/gateway/html/rdp_min.js:146
  onCopy https://application.ourcompany.com/hosts/gateway/html/surface_min.js:120

Content Security Policy: The page’s settings blocked the loading of a resource at https://application.ourcompany.com:8384/CLIP?s=ca5311bl-d6bs-67f1c-w501-13dwk0ca54c1&t=2676589901112&type=copy (“connect-src”).

If we use the application with different browser (like Edge or Chrome), we can enable the clipboard on the browser. If we enable the clipboard access for the site (https://application.ourcompany.com), the copy/paste function works well. The problem is that we cannot find enable clipboard feature in Firefox.

My quiestion is, how can we enable the clipboard in Firefox for our (webapplication) site?

Thank you so much for the help!

Best Regards Gabor

Dear Mozilla Community,

Our company use a web application whiches we can connect to customer servers via RDP (Remote Desktop Protocol). The web application uses Spark Gateway. The problem is that if we use the web application with Firefox, we can't use clipboard function.

The error codes in the browser console:

Uncaught DOMException: A network error occurred.

   httpGet https://application.ourcompany.com/hosts/gateway/html/hi5core_min.js:68
   getClipData https://application.ourcompany.com/hosts/gateway/html/rdp_min.js:146
   onCopy https://application.ourcompany.com/hosts/gateway/html/surface_min.js:120

Content Security Policy: The page’s settings blocked the loading of a resource at https://application.ourcompany.com:8384/CLIP?s=ca5311bl-d6bs-67f1c-w501-13dwk0ca54c1&t=2676589901112&type=copy (“connect-src”).

If we use the application with different browser (like Edge or Chrome), we can enable the clipboard on the browser. If we enable the clipboard access for the site (https://application.ourcompany.com), the copy/paste function works well. The problem is that we cannot find enable clipboard feature in Firefox.

My quiestion is, how can we enable the clipboard in Firefox for our (webapplication) site?

Thank you so much for the help!

Best Regards Gabor

ok my problem is: before: https://i.ibb.co/gdBssLZ/Image-224.png after: https://i.ibb.co/fSY8RHf/Image-241.png

my firefox take up more space, even my addons dont fit the way it was. its very annoying, how can i make it back?