Форум поддержки Firefox

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 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 ?

Hi,

Firefox is displaying this message: Did Not Connect: Potential Security Issue

Firefox detected a potential security threat and did not continue to l.mail.people.com because this website requires a secure connection

and does NOT let me continue... HOWEVER, if I copy n paste the URL (https://l.mail.people.com/rts/go2.aspx?h=16465956&tp=i-1NHD-9U-36Hb-1OjSfX9-Hv-5EjIU-1c-Xmrj-1OjOLzQ-l78hyiHVom-1J3ttn&x=6b160f0f640ceeb5fd6f8fe1a3284d4886844914%7c739139%7c20220211%7c021122%7c739139%7c79459191515) to a DIFFERENT browser, there are NO issues with it.

Why is Firefox complaining and how do I tell it to STOP?

Hi!

So i have a problem with opeing sites : Google and Youtube. It happend randomly. All was working great i restarted computer and suddenly its not working;/ I scaned for viruses - download eset - nothing. When eset war running it started working again - i deleted eset since it was slowing down my pc, and the problem is back.

Error code: SEC_ERROR_UNKNOWN_ISSUER

Error info:

https://www.youtube.com/?gl=PL&hl=pl

Wystawca certyfikatu uczestnika komunikacji nie został rozpoznany.

HTTP Strict Transport Security: true

HTTP Public Key Pinning: true

Łańcuch certyfikatu:

MIIDdjCCAl6gAwIBAgIQKd8+XqA5qrZPzhYj71P8MzANBgkqhkiG9w0BAQsFADAj

MSEwHwYDVQQDDBhEaWdpQ2VydCBHbG9iYWwgUm9vdCBHMUEwHhcNMjAwNDA4MDcx

NjI2WhcNMzEwNDA4MDkxNjI2WjAaMRgwFgYDVQQDDA93d3cueW91dHViZS5jb20w

ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDeIu9SWvCMhhDqkCCvRmDY

/8Z/EyxMySr5+CgqMmApxmNA5kKSDpjbCFGuRTkC/2SwLiaQCRuovVvwvZrk8Tlu

dxu6txaDQg9nldZVS19FO5bj5L/8FO7n82bLxm+omGDF+IVbZW+338fbfO/HcxS1

GEnammeE44nw8vYdpPrQx481gu9AGMLsQLUM/EwUQ4u4FHQPKE9z6iUtkebv0/h+

4GbhvdDegrCXyvJSXuzxzilgtB5R1inw5UvibVcStdpjL69+px39OKJvV05eqNfJ

xJtxjmx7HQgZcjdW/Xo1f4yYxyaT9toYxdPpH1atB58TlsMA66x/Z2kKK2gL+MiB

AgMBAAGjga4wgaswEwYDVR0lBAwwCgYIKwYBBQUHAwEwDAYDVR0TAQH/BAIwADAO

BgNVHQ8BAf8EBAMCBaAwNgYDVR0RBC8wLYIPd3d3LnlvdXR1YmUuY29tgg0qLnlv

dXR1YmUuY29tggt5b3V0dWJlLmNvbTAfBgNVHSMEGDAWgBSWti4vM+xzcoW7bzKo

dbvLnKtUdjAdBgNVHQ4EFgQU1lIhGk7z+LGh+Amnt433ZZmGSoAwDQYJKoZIhvcN

AQELBQADggEBAGAlYFFFqa/XToQ6idM+5F9a1l+IOHfp8og3pg1Z1GVbfrB14eRJ

ZulnLkJI0cxpSNgLo9m9sl6+JdL85gV0f/6PpxDgflfZBKJgPxFtDShemgRiY2jQ

Vl6b7/Rp8nR1r3kfdcc1mA0XQKnzt4RxjzFUqHycWbkiBVPBm+ZVD2btgb8gVluZ

ScGRF0GolVx84KoE1A2WkrxRgu/lprAV/8I6AZxnI8oSBc/SqRXjInbtt1jd0xMe

nOCYTjOld+52kl3/LTCmSmHtBau0JlRROAMchNl7xhGrwNer9uYuylFC85xa0GzA

7S6uZRV3pnqWHBq9BUvU+Tm/hLfGkHcZI/E=

Need help :)

Thanks

Just updated Firefox from version 90.0.2 -> 91.0.1 on a Mac running OS 10.15.7.

I'm experiencing 404 errors of which do not occur in the previous version. Here's what the console shows...

Source map error: Error: request failed with status 404 Resource URL: https://MyWebsite.com/assets/vendor/bootstrap/css/bootstrap.min.css Source Map URL: bootstrap.min.css.map

I tried several things to try and isolate this issue, but all to no avail. The file does exist, and loads in the previous version of Firefox.

Any help would be greatly appreciate.

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]

Friends,

I'm really, really hoping someone here can help me:

I've been trying to load my website: www.photostills.com using the latest Firefox Browser V. 94.0.2. but continue to recveive the following message: (see below)

I have tried resetting my preferences to allow access. I can open my site in other browsers without a problem but really need to have clients access it from Firefox as well.

Please, please advise.

Thank you for your help!! Here is the error message:

Secure Connection Failed

An error occurred during a connection to www.photostills.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.

After auto update to FF 89.0, access to long-time Fidelity account is intermittently blocked as a security warning, or causes DSL line to drop at submission of account security code, or displays account entry page as plain text, not std HTML formatting, or most often results in a technical error page saying try again later. MS EDGE works fine, no issues. This is the only webpage this occurs on. Fidelity has no FF reported issues on their end nor does my IP supplier. Using desktop PC, running Win10/64-bit, DSL line @ ~ 2.3 Mbps. Using the "Light Theme" which was auto set with 89.0. This plus the new bastardized menus will push me to drop FF since I can't afford endless hours to fix basic functionality with ea update.

I am unable to connect to the Nord VPN website or the Express VPN website because of a security issue with the Firefox Browser and I am unable to bypass the security and go to the site anyway. Here is what the message said: Did Not Connect: Potential Security Issue

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

What can you do about it?

www.nordvpn.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.

Learn more…

How can I connect to these websites?

In the past it was possible.

How can I download a certificate from a web site?

I click in the Lock Icon in the url bar->...->..> View Certificate

It only shows a partial view of the certificate and there isn't a button for download the certificate.

An error occurred during a connection to www.airguns.net. Cannot communicate securely with peer: no common encryption algorithm(s).

Error code: SSL_ERROR_NO_CYPHER_OVERLAP what in the hell do i do?????????

I got a new printer today. Epson WorkForce Pro 3820. When I access the web interface, I get this error. I can proceed past it but I'd like to know how to get rid of the error. Thank you. Barbara

Warning: Potential Security Risk Ahead

Firefox detected a potential security threat and did not continue to 192.168.xxx.xx. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

Learn more…

192.168.xxx.xx uses an invalid security certificate.

The certificate is not trusted because it is self-signed.

Error code: MOZILLA_PKIX_ERROR_SELF_SIGNED_CERT

View Certificate

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, 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,

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.

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.

Edited to add TLDR: some Firefox requests to Google servers seem to fail internally. What can I try to diagnose the problem?

I'm having a recurring problem with Firefox on various Google sites: google.com, Gmail, Calendar, Keep etc. For long periods of time (but not always), Firefox completely fails to load the site, or loses its connection after the page is loaded (for example Gmail displays an error message "Oops... The system encountered a problem (#001)"). The problem usually seems to occur for periods of many minutes, with occasional gaps where the sites work properly. Also, it seems to be site-specific: sometimes it will load google.com normally while Gmail is still having problems. This is really frustrating, I'd like to use Firefox for all my browsing but I also need to use Google services regularly and that doesn't work if Firefox won't load them properly most of the time.

I'm pretty confident it's a problem with Firefox itself, and not with my network or computer, because I get the same issue across multiple Firefox installations and versions (Firefox 90 and 91 on Windows 10, and Firefox 78.10.0esr and 90 on Linux), and while the problem is happening I can access the same sites successfully from a different browser on the same computer (Chrome or Edge). I've tried refreshing my Firefox profile, working in a private browsing window and using a completely new profile, but the problem still occurs. I've also made sure I'm using "Standard" protection in Firefox's security settings and disabled Enhanced Tracking Protection for the sites I'm trying to access.

I've tried to look at what's going on using Firefox's Network Monitor, and the key thing that seems to happen when this problem occurs is that one or more network requests to a google address (google.com, mail.google.com or ssl.gstatic.com) appear with "0 B" in both the Transferred and Size columns (see screenshot attached). Sometimes the failed network request has a simple padlock icon as in the screenshot, and sometimes a red error symbol with mouseover text that says a security error prevented the resource being loaded. There's also occasionally an error message in the Console: "A ServiceWorker passed a promise to FetchEvent.respondWith() that rejected with 'TypeError: NetworkError when attempting to fetch resource.'.". Removing the relevant service workers in about:serviceworkers doesn't make any difference. On Linux, I've tried using tcpdump to check the actual network traffic and it looks like nothing is actually sent across the network for these requests, so whatever the problem is seems to be happening inside Firefox itself.

Ticking the "Disable Cache" box in the network monitor doesn't help. If I manually resend the same request using the menu in the network monitor, a normal response is received (but the content is not actually displayed in the browser).

It looks to me like some kind of caching or security problem, where Firefox somehow gets in a state where some network requests are blocked or fail to load from a cache, but after a while whatever is causing the problem is cleared and it works normally for a minute or two before the problem recurs. I would simply report this as a bug on Bugzilla, but I can't offer steps for anyone else to reproduce the problem because it only happens when I'm logged into my own Google account. I've run out of ideas for how to diagnose or fix this. Can someone suggest anything else I should try? Thanks!

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,

After upgrading to Firefox 91 when I visit site with self-signed certificate in Private window I always get Warning: Potential Security Risk Ahead error even though the certificate had already been added to exception list while not in private browsing. It looks like in private window certificate exception store is not honored. There was no such an issue before version 91. This behavior is by design or it could be a bug ?

Thanks

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.