Firefox Support Forum

This started happening on many websites this week. Sometimes refreshing the page helps, sometimes it doesn't.

I'm only using Windows Defender and Tinywall (blocks everything through windows firewall) as security.

The websites I'm entering are definitely safe and don't have expired certificates (like Reddit).

Secure Connection Failed

An error occurred during a connection to www.google.com. Peer’s certificate has an invalid signature.

Error code: SEC_ERROR_BAD_SIGNATURE

   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 am on Linux Mint, Firefox 100.0 and I am trying to access a website, https://www.citapreviadnie.es:38188 (requires personal DNIe certificate). However, I keep getting SSL_ERROR_UNKNOWN_CA_ALERT. If I view the certificate of the website,

1. Firefox doesn't tell me which part of the chain is invalid or not trusted (or I don't see it) 2. When I try to download and import each of the CA certificates, I get an alert saying "This certificate is already installed as a certificate authority." 3. If I try to import the whole chain, I get another alert telling me "This is not a certificate authority certificate, so it can’t be imported into the certificate authority list." 4. If I try to add a permanent exception to the site, I see "This site attempts to identify itself with invalid information", but if I click "view certificate" I'm back to step 1, and adding the exception does not have any effect.

What am I supposed to do now?

See attached: Getting “Secure Connection Failed” error Running Windows 10 Pro Build 19042 on a Laptop Access to the same secure website works fine with Chrome and Edge Also works with Firefox on my Desktop computer So something is weird with Firefox on the laptop? I tried uninstalling and re installing and removing all my user/appdata Thanks for any clues Email: ac.berkema@gmail.com

I have been trying to get on the Malwarebytes website, but I keep getting;

Your connection is not secure

The owner of links.malwarebytes.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

links.malwarebytes.com uses an invalid security certificate. The certificate is only valid for the following names: *.fortinet.com, fortinet.com Error code: SSL_ERROR_BAD_CERT_DOMAIN

This happens with all of my web browsers. Is it safe to allow Fortinet ?

Firefox giving following error,

Websites prove their identity via certificates. Firefox does not trust this site because it uses a certificate that is not valid for 192.168.1.100. The certificate is only valid for the following names: anishamsi.lan:6659, 192.168.1.100:6659, 192.168.1.100, anishamsi.lan

I can see the url is there as listed by firefox error itself (verify with screenshot 1), the url is "https://192.168.1.100/api/validateLogin"

please see the screenshot as well. First screenshot is for the error, second is for the certificate returned by the website and as shown by firefox.

What is the error, i have created the certificate correctly. i am sure this is a bug in firefox?? If not!!! how u suggest i fix this i have added following alt names inside my csr. DNS.1 =anishamsi.lan:6659 DNS.2 =192.168.1.100:6659 DNS.3 =192.168.1.100 I have already uploaded the certificate at names screenshot.

SSL_ERROR_ACCESS_DENIED_ALERT I keep getting this on different sites, I can't access lots of pages and it's getting to be a massive problem and I reallly need some help. PLEASE can someone help.

Hi,

There are circumstances where the domain owner of a given site could indeed have misconfigured their web site and I am grateful for Firefox detecting this and not immediately loading the page. My concern however is that I don't have the freedom to continue no matter what I try ("Advanced" only provides with the error message and has "Go back" option). I had to go so far to install Chrome in order to load the page - it detected the same problem but had a "go to the page despite this error" possibility. I am grateful for the security protection of Firefox but I would appreciate being allowed the freedom to load a page after being warned of any potential security hazard rather than being forced to not open it.

Thanks,

Have been trying to fix this problem - FF works beautifully if Kaspersky Internet Security is OFF but cannot access any websites when it is ON - just this PR_CONNECT_RESET_ERROR page.

Kaspersky support has been assisting but no solutions as yet. Any help from Mozilla is appreciated. This has been going on for 4 days now.

Using FF version 94.0.2 (64-bit) on Windows 10.

I've tried debugging the extension, errors in attachment

Hello, I've been unable to access google mail/drive recently, w error code SEC_ERROR_UNKNOWN_ISSUER and certificate issuer CISCO. i don't have any antivirus software, I've tried resetting the proxy, clearing cache, reinstalling Firefox, nothing works. If this continues I'll have to definitely move to another browser - with which I have no problem accessing those sites... Help please? Thanks

I am getting a Secure Connection Failed error on every website I try to log into on my laptop. The issue is not occurring on my desktop or either of my iOS devices under the same login account. I have tried every "fix" I can find through the FAQ's and through online googling, nothing has worked. I don't have any conflicting apps or security features that I can find. I have tried purging the history/cookies, un-installing and re-installing. After a re-install the websites will work for about 5 minutes then I receive the same Error message. Please help!

I hope someone can help me with this problem. I own the domain "cpaaffiliatesnetwork.com" and the site serves as my business site and access to my business network platform. The site is SSL secured and the SSL certificate was renewed in February 2021 for 1 year. Since the SSL renewal, I started having issues accessing the site from any browsers installed on this computer (Edge, Firefox & Chrome). I have now managed to fix the display issue in both Edge & Chrome through clearing cache / history, BUT, I have tried the same with FF with no success. I have also tried uninstalling and reinstalling Firefox, but, still receive the error below for any attempt to access the site: Secure Connection Failed

An error occurred during a connection to www.cpaaffiliatesnetwork.com. Peer’s Certificate has been revoked.

Error code: SEC_ERROR_REVOKED_CERTIFICATE

   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.

All external people i have asked to check the site have confirmed it works fine for them, but, it will not work for me. Hoping someone has a suggestion many thanks in advance :)

Hello team,

In our website www.beutics.com is facing loading issues in mozilla browser use by computer. there no issues in mobile app & any other browser. can you please help me to fix this issues.

when trying to access my website Noblittoilandgas.com I get a SECURE CONNECTION FAILED notice, Error Code: SEC_ERROR_REVOKED_CERTIFICATE, how do I fix this issue?

Secure Connection Failed

An error occurred during a connection to 61.5.135.10:89. Peer using unsupported version of security protocol.

Error code: SSL_ERROR_UNSUPPORTED_VERSION

   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.

This website might not support the TLS 1.2 protocol, which is the minimum version supported by Firefox.

Site page that I have used for years is not loading. Keep getting this error message.

Secure Connection Failed An error occurred during a connection to www.hamdata.com. PR_CONNECT_RESET_ERROR

The site is www.hamdata.com How do I fix this?

Thanks Jim [removed email from public]

Hi, We currently connect to a vendor devices admin page that is inaccessible via Firefox because of the following error "Secure Connection Failed" (Error code: SEC_ERROR_INADEQUATE_KEY_USAGE) and won't present the option to proceed via the "Advanced" option. Long story.... The vendor is aware of the issue and as the configuration page is always accessed internally and uses TLS in some form they do not want to allow us to make any changes to uploading our own certs.

Anyway recently I was made aware of a keyboard shortcut to force firefox to bypass the error screen and force a connection, however I have not been able to find it since on the Shortcut guide for firefox. Can anyone provide me with this shortcut, It will save having to switch between multiple browsers.

Thanks is Advance,

I have since a few weeks errorcodes showing up at my screen whenever i want to visit a website where videocontent is to see( like if you want to visit reddit and watch a video or something like that).I´ve didn´t do or didn´t visit anything special when it came up, it just came and now its there.I´ve also tried different things from the help articles that could solve the problem, didn´t do anything. It says in its message "secure connection failed". The problem is also on every browser, not only on firefox

Some website are opening fine but some are not, showing Secure Connection Failed PR_END_OF_FILE_ERROR. Even Google, Youtube are also showing same error page. I have tried every probable solution from internet. Even I have tried to open browser in Linux system installed in my pc and found same issue. This problem is coming from few weeks, previously it was fully ok.

Please help me to rid out of this.