Firefox Community Forum

I am trying to access certain HTTPS website and some of them show PR_CONNECT_RESET_ERROR in Firefox. This error is not present in Edge or Chrome. Any ideas on what could be the problem?

An error occurred during a connection to delta-executorr.com. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem.

Here's what I've tried (none of these works):

   DNS over HTTPS turned off
   Uninstall all add-ons
   Reinstall Firefox
   Create new profile and set it as default
   Delete/rename certs.db in the Firefox profiles folder. 

I'm tired fixing errors which become more complex and solutions are written for people who have the time an knowledge to waste fixing these constant issues in FIREFOX, Time to change browser.

I don't know if this is relevant but one of the website that does not work is https://delta-executorr.com/

I tried using the new profile system, but it totally F**d me over. I can no longer access I site I've been using for years because the profile system kicked me out of it and now I cannot get back in because Firefox is telling me it's an un-secured connection. I don't care. I put it on the exception list, but that did not work to let me back in again. Help, please.

Give me back my access to irccloud.com. I have been using that website for over 5 years on FireFox and then this morning you denied me access. Thanks for checking and correcting.

My cloud account is nearly full but when I go to update the account or purchase more space I am blocked. The authenticity of going from Mozilla Firefox to cloud is blocked because it cannot confirm it identity. I at the point of not being able to use my computor due to being blocked. Can anuone tell me how to get through?????

Hi, Since three or four months, whenever I log into Outlook live, either on Mac or Windows PC, I get a security warning saying that the information will not be secure (Please see attachment.) When I log into the same account, from Edge for example, I do not get the warning popup. I really enjoy using Firefox and would love to continue but this case is worrying me a bit. Any idea to help? Thank you very much, Mathieu B.

Loading website for BacaPoa.frontsteps.com does not work, now fails ("not secured") . This is business site I have for years.? [windows 11] Is the a bypass or override I can do? JR

All of a sudden I am getting loads of SPAM emails and when I try to unsubscribe, I get a Secure Connection Failed error. I have marked them as SPAM but they just keep coming, daily.

SSL_ERROR_HANDSHAKE_FAILURE_ALERT

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

I have never ever had a problem getting into my bank account until this evening.

Says it is insecure.

How can this happen? I really need to get into my account!

Hello,

I have been using Firefox for many years and also have Bitdefender Security Premium running on my devices. Unfortunately, I am getting more and more messages like the following:

Function: Online threat protection

firefox.exe attempted to connect to ads.mozilla.org using an untrusted certificate. We blocked the connection because untrusted certificates are issued by unrecognised certification authorities.

However, I can confirm that Firefox and the add-ons are all up to date. But I also trust Bitdefender, as this message will not have come out of nowhere. What can I do to get everything working properly again? Thank you. Kind regards, NaIch

Translated with DeepL.com (free version)

Hello, I run a movie and drama-related website: https://tvmon.com.co/. Recently, I’ve noticed that Firefox occasionally throws the following error when trying to access the site:

"Secure Connection Failed An error occurred during a connection to tvmon.com.co. . The OCSP response contains an invalid signing certificate. Error code: SEC_ERROR_OCSP_INVALID_SIGNING_CERT"

This issue is very strange because:

1. The site loads fine in Chrome, Edge, and Safari.

1. My SSL/TLS certificate is valid, up-to-date, and passes external tests (SSL Labs, etc.).

1. The error only appears occasionally in Firefox, refreshing sometimes fixes it, sometimes not.

1. Hosting and server logs show no issues at all.

I suspect this is related to Firefox’s stricter OCSP validation, but I’m not sure how to debug or resolve it. Since my site streams drama and movie content, this error is frustrating for users who rely on Firefox.

Has anyone else experienced this intermittent OCSP signing certificate error? Is there a known fix or workaround for Firefox-specific validation issues?

'I was sent a link that goes to a learning site by my future employer to take some online classes via email. Every time I try to access the site I get a message that I need to close the page as the website may be impersonating someone trying to steal my information. I use Safari, not that I have a clue what it means, is this a restriction issue I need to avoid or sidestep like a firewall or something similar? I tried typing the web address and the HR office says not to do that - to only use the link. How can I check what’s wrong so that I can take access the online classes for this position?

Secure Connection Failed

An error occurred during a connection to sandiego.thepermitportal.com.

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

What can be done about this?

JF

Did Not Connect: Potential Security Issue

Below mentioned issue occuring ???

Firefox detected an issue and did not continue to finance.jharkhand.gov.in. The website is either misconfigured or your computer clock is set to the wrong time.

It’s likely the website’s certificate is expired, which prevents Firefox from connecting securely.

What can you do about it?

finance.jharkhand.gov.in 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. You can notify the website’s administrator about the problem.

when I go into firefox and enter my password this is what I see.

Secure Connection Failed

An error occurred during a connection to searchingswift.com. SSL received a record that exceeded the maximum permissible length.

Error code: SSL_ERROR_RX_RECORD_TOO_LONG

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Hi,

Youtube won't even load on my computer anymore....this is the message I get when I try.

Secure Connection Failed

An error occurred during a connection to www.youtube.com. PR_END_OF_FILE_ERROR

Error code: PR_END_OF_FILE_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Learn more…

ChatGpt isn't working and it tells me An error occurred during a connection to chatgpt.com. Cannot communicate securely with peer: no common encryption algorithm(s).

Error code: SSL_ERROR_NO_CYPHER_OVERLAP

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.