Ceisteanna leis an gclib seo á dtaispeáint: Taispeáin gach ceist
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I can't bypass certificate warnings anymore (HSTS)

In short, I want to be able to bypass certificate warnings. Yes, I've seen this: https://support.mozilla.org/en-US/questions/1169632 "When there is HSTS(HTTPS Strict Tran… (tuilleadh eolais)

In short, I want to be able to bypass certificate warnings.

Yes, I've seen this: https://support.mozilla.org/en-US/questions/1169632 "When there is HSTS(HTTPS Strict Transport Security) set on the server, you cannot add a exception"

In less short, my case (because one needs to always justify one's methods), I set up a subdomain on a separate IP/host and I'm trying to test some project for which I use a webpage as a small visible part. However, the domain uses HSTS (HSTS == very nice).

However, I'm just casually testing something using a subdomain (or even a fake domain, or a real domain pointing to a new server being prepared, maybe using /etc/hosts) pointing to an external or internal IP on some old computer on my LAN or even on my own computer. And that's not possible anymore.

People should always have the option to bypass a warning, and I'm all for the warnings. If anything, there shouldn't have been a box with the option "always remember" ticked by default. There are other cases where this can be useful, some we don't even know yet.

Asked by BatManuel 4 bliana ó shin

Answered by philipp 4 bliana ó shin

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Secure sites fail with SEC_ERROR_LIBRARY_FAILURE using 57 on ubuntu 17

I've tried suggestions made here https://support.mozilla.org/ca/questions/1177892 and here http://forums.mozillazine.org/viewtopic.php?f=23&t=3032609, including remov… (tuilleadh eolais)

I've tried suggestions made here https://support.mozilla.org/ca/questions/1177892 and here http://forums.mozillazine.org/viewtopic.php?f=23&t=3032609, including removing and re-installing firefox.

Asked by Emmulator 4 bliana ó shin

Answered by cor-el 4 bliana ó shin

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ERROR CODE: SEC_ERROR_OCSP_INVALID_SIGNING_CERT

Firefox does not allow me to open this site: https://www.mysubs.co.za/ . It gives the following error code :SEC_ERROR_OCSP_INVALID_SIGNING_CERT. This is the site that I … (tuilleadh eolais)

Firefox does not allow me to open this site: https://www.mysubs.co.za/ . It gives the following error code :SEC_ERROR_OCSP_INVALID_SIGNING_CERT.

This is the site that I read my local newspaper on daily.

It is opening fine on other browsers like Chrome

Asked by greenleader 4 bliana ó shin

Answered by cor-el 4 bliana ó shin

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Your connection is not secure?

I do not have Avast, Kaspersky, or ESET, and every website on Firefox Quantum shows a "Your Connection is Not Secure" error. Error code: SEC_ERROR_UNKNOWN_ISSUER www.goo… (tuilleadh eolais)

I do not have Avast, Kaspersky, or ESET, and every website on Firefox Quantum shows a "Your Connection is Not Secure" error.

Error code: SEC_ERROR_UNKNOWN_ISSUER

www.google.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported.

support.mozilla.org uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported. Error code: SEC_ERROR_UNKNOWN_ISSUER

Asked by decoy 3 bliana ó shin

Answered by cor-el 3 bliana ó shin

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Constantly getting SSL_ERROR_RX_UNKNOWN_ALERT when trying to access some sites and Youtube videos won't load

Hello, Just yesterday I started having issues on my computer with Firefox. I play Elite Dangerous and went to the forums to check a recent update, and instead it sends me… (tuilleadh eolais)

Hello,

Just yesterday I started having issues on my computer with Firefox. I play Elite Dangerous and went to the forums to check a recent update, and instead it sends me to an error screen with the message: "SSL_ERROR_RX_UNKNOWN_ALERT."

Screenshots:

https://i.imgur.com/gwGHUxG.png

https://i.imgur.com/zLztR9u.png

I refreshed firefox, deleted cache data/cookiees, etc. I also uninstalled AdBlockerPlus thinking that was the problem. None of these solved the issue, and Firefox works fine on my home internet (same internet as this PC) on my Windows Surface Pro 3 tablet.

Thank You

Asked by flavivsaetivs 3 bliana ó shin

Answered by flavivsaetivs 3 bliana ó shin

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Microsoft just updated and now Firefox is telling me that every site I try to access is unsecured including the Star One Credit Union; What gives?

Microsoft just updated and now Firefox will not let me open up any web sites, except yours. It will not even let me open my Star One Credit Union account saying it is un… (tuilleadh eolais)

Microsoft just updated and now Firefox will not let me open up any web sites, except yours. It will not even let me open my Star One Credit Union account saying it is unsecured. I clicked the box that said exception and now it allows me to open this. However, there are still many sites it will not let me access without declaring an exception. I like the fact that Firefox will notify me of unsecured sites, but since it seems to think every site is improperly set up, how do I know which sites are ok and which are not?

Asked by bltzftz 3 bliana ó shin

Answered by cor-el 3 bliana ó shin

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Inside a familiar web page I am no longer able get to a specific page. If I go to a public PC, I can get it but no longer with FireFox on my PC. How Do I fix?

Page I formerly got now just shows a blank. With Internet Explorer, it shows, "Content was blocked because it was not signed by a valid security certificate"… (tuilleadh eolais)

Page I formerly got now just shows a blank. With Internet Explorer, it shows,

            "Content was blocked because it was not signed by a valid security certificate". Don't know what that means nor how to fix it.

Asked by RJthorp 3 bliana ó shin

Answered by cor-el 3 bliana ó shin

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Unexpected "insecure website" message.

Why is this Windows 10 link considered to be "insecure" , must be safe surely??! https://blogs.windows.com/windowsexperience/2015/06/12/how-windows-insider-feedback-influ… (tuilleadh eolais)

Why is this Windows 10 link considered to be "insecure" , must be safe surely??! https://blogs.windows.com/windowsexperience/2015/06/12/how-windows-insider-feedback-influences-windows-10-development/

Asked by Aggers 3 bliana ó shin

Answered by FredMcD 3 bliana ó shin

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Certificates deleted, nothing loads ... :(

I got a little gungho when I was trying to figure out why my website wouldn't load on firefox and loaded on chrome and safari - and I did some 'cleaning up' and deleted c… (tuilleadh eolais)

I got a little gungho when I was trying to figure out why my website wouldn't load on firefox and loaded on chrome and safari - and I did some 'cleaning up' and deleted certificates. Now nothing will load. I've deleted the cert8.db, and tried the steps under "Corrupted certificate store" in this article: What does "Your connection is not secure" mean? Reset Firefox, deleted and reinstalled firefox, and still nothing works, and I continue to get this error on all https sites:

Your connection is not secure

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

Asked by Ariana_ariana 3 bliana ó shin

Answered by Ariana_ariana 3 bliana ó shin

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Brand new installation and Firefox will not open ANY https:// web site

Brand new computer. iMac. OS 10.12.6 (16G1212) Dowloaded latest version from Mozilla website. Absolutely NO website that is https:// secured will open and that include… (tuilleadh eolais)

Brand new computer. iMac. OS 10.12.6 (16G1212)

Dowloaded latest version from Mozilla website. Absolutely NO website that is https:// secured will open and that includes https://support.mozilla.org. Error states Mozilla (or whomever) has misconfigured their web site and it is not secure. Security unknown.

Help please?

Asked by tjlytle 3 bliana ó shin

Answered by tjlytle 3 bliana ó shin

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Firefox won't allow me to access D2L via my school website. It says it is not encrypted. See https://uwlax.courses.wisconsin.edu/d2l/shibbolethSSO/wayf.d2l

I get this error code: SEC_ERROR_BAD_SIGNATURE. This is a new problem as of today. Yesterday I was able to access this website just fine. Via the same internet source (ca… (tuilleadh eolais)

I get this error code: SEC_ERROR_BAD_SIGNATURE. This is a new problem as of today. Yesterday I was able to access this website just fine. Via the same internet source (campus of University of Wisconsin La Crosse). Please help. Here is full text of the error message.

Secure Connection Failed

An error occurred during a connection to uwlax.courses.wisconsin.edu. 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.

Asked by JoshDvo 3 bliana ó shin

Answered by FredMcD 3 bliana ó shin

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I keep getting a "SEC_ERROR_UNKNOWN_ISSUER" on google

I keep getting this error on multiple sites. It makes it nearly impossible to search. Here is the log. https://www.google.com/search?q=lokl&ie=utf-8&oe=utf-8 Peer… (tuilleadh eolais)

I keep getting this error on multiple sites. It makes it nearly impossible to search. Here is the log. https://www.google.com/search?q=lokl&ie=utf-8&oe=utf-8

Peer’s Certificate issuer is not recognized.

HTTP Strict Transport Security: false HTTP Public Key Pinning: true

Certificate chain:


BEGIN CERTIFICATE-----

MIIC2jCCAcKgAwIBAgIRAKtHI4dvCf+xVho4OI8HlhowDQYJKoZIhvcNAQELBQAw KzELMAkGA1UEBhMCRU4xHDAaBgNVBAMME0FkZ3VhcmQgUGVyc29uYWwgQ0EwHhcN MTgwMjI4MjIwOTU4WhcNMTgwNTIzMjIwNzAwWjBoMQswCQYDVQQGEwJVUzETMBEG A1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzETMBEGA1UE CgwKR29vZ2xlIEluYzEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20wgZ8wDQYJKoZI hvcNAQEBBQADgY0AMIGJAoGBALNAODusrCy4stEELRUioY0Wvfm2itk6VoWIbWXD HW/42k2F4C95/OMUa0o+JdeClcxOumFtUw0T2PyAG926EeisJw4ovutorz4P4LUQ EdTNYix/jetE7Xl73lSMNCCQfbdEMURnyGXrJvE0qeFmb5pYH3OG9evev2XzARYw 1WORAgMBAAGjQDA+MBkGA1UdEQQSMBCCDnd3dy5nb29nbGUuY29tMAwGA1UdEwEB /wQCMAAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDQYJKoZIhvcNAQELBQADggEBALyA BM/OWb+6pYMYr+SeGf84n2a7G62JInunted9dreb9MUzusHgmkezSdku6N9FB5Cg BIH9s6Vyiy2hOHkSllUoY81D70D7bbhM8YY0NTHE97kRkvG/85GYCGLoQgTMUAB1 HAnOhQvjtnRomGVY3z1iFzWpZ5EUaziFW1awpv5ipJVFie0mK6ho0aRsMAD4y4rt 0lD+TuQ4dsoQwaY9gbiGDF3GMmDHq4HyoUbJCFmTOLFp13uMo/5rJCRFmtHL/llF zbhxkigZH+X9hGd8VSe3XjWvBQhPH/lnUa97QYr4PRbcKPzXMAFRVugyPfF3qYpG qVus8/7AY0s1P9WXovQ=


END CERTIFICATE-----

Asked by ehbramwerick 3 bliana ó shin

Answered by cor-el 3 bliana ó shin

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When using a corporate proxy via a .pac, why do I get an SEC_ERROR_UNKNOWN_ISSUER for every site outside the VPN?

Switching from Safari to Firefox, I wanted to use the same proxy settings. My first try was to use the system's settings, as it gets automatic proxy configuration from th… (tuilleadh eolais)

Switching from Safari to Firefox, I wanted to use the same proxy settings. My first try was to use the system's settings, as it gets automatic proxy configuration from the right URL. This worked alright for Safari! On Firefox however, if I'm connected to the VPN I can access all websites in our VPN, but none outside, as I get the SEC_ERROR_UNKNOWN_ISSUER (can't always add an exception) As soon as I exit the VPN, firefox is "unable to find the proxy server".

I've tried all other kinds of ways to connect via that proxy - manually connecting, by URL in firefox or by automatically detecting, but nothing solves my problem. The automatic configuration shouldn't be the problem as it works fine for Safari and shouldn't be any different for Firefox.

I'd really appreciate any help on the subject.

Asked by kaetherina 3 bliana ó shin

Answered by kaetherina 3 bliana ó shin

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The download from this link https://www.mozilla.org/en-US/firefox/all/ doesn't do anythying.

When I access this site using MS Edge or Google Chrome, I get the website is not configured properly. If I click on the Update Firefox from FF browser, it downloads an in… (tuilleadh eolais)

When I access this site using MS Edge or Google Chrome, I get the website is not configured properly.

If I click on the Update Firefox from FF browser, it downloads an installer which continually says it is installing, yet never completes.

Asked by ahiestand 3 bliana ó shin

Answered by ahiestand 3 bliana ó shin

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cannot open web pages anymore always unsecure why?

I am having trouble with opening web pages that I always use. Since the last two updates of Firefox I cannot open any web pages except youtube and amazon. Can anyone sh… (tuilleadh eolais)

I am having trouble with opening web pages that I always use. Since the last two updates of Firefox I cannot open any web pages except youtube and amazon. Can anyone shed any light on this or is anyone experiencing the same problem? Any help will be appreciated.

Asked by snowbunny 3 bliana ó shin

Answered by snowbunny 3 bliana ó shin

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How do I resolve the error 'Your Connection is Not Secure'?

I'm on the Sony Vaio, using Mozilla Firefox but I keep getting this error on the majority of websites. Where is this coming from and how can I fix it? Any help would be g… (tuilleadh eolais)

I'm on the Sony Vaio, using Mozilla Firefox but I keep getting this error on the majority of websites.

Where is this coming from and how can I fix it?

Any help would be gratefully received.

I also have Bit Defender (in case this has anything to do with it).

Asked by benas100 3 bliana ó shin

Answered by FredMcD 3 bliana ó shin

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Problem with 'require safe negotiation'

I tried to make a purchase and during one of the redirects Firefox reported that it was unable to establish safe negotiation (error code: SSL_ERROR_UNSAFE_NEGOTIATION). T… (tuilleadh eolais)

I tried to make a purchase and during one of the redirects Firefox reported that it was unable to establish safe negotiation (error code: SSL_ERROR_UNSAFE_NEGOTIATION). The site that had the problem is https://secure5.arcot.com/ . I have security.ssl.require_safe_negotiation set to true. However, if I set it to false and go to that site, Firefox reports that it uses "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, 256 bit keys, TLS 1.2". I am not an expert in ciphers/TLS but the version seems sufficiently new.

I would like to report the problem but I need to know whom to report it. So far, it seems like a Firefox bug. However, I am not a security expect and, perhaps, the site is using a different obsolete SSL version to negotiate. How can I determine what exactly caused the failure?

Asked by pysar 3 bliana ó shin

Answered by Shadow110 3 bliana ó shin

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unable establish a connection with following cipher suit "<Attr name="Ciphers" type="nstr" value="DHE:ECDHE:!SSLv3:TLSv1.2:!ADH:!aNULL:!AES128"/>"

duplicate of https://support.mozilla.org/en-US/questions/1213709 - locking unable establish a connection with a server with following cipher suite "<Attr name="Ciphers… (tuilleadh eolais)

duplicate of https://support.mozilla.org/en-US/questions/1213709 - locking

unable establish a connection with a server with following cipher suite "<Attr name="Ciphers" type="nstr" value="DHE:ECDHE:!SSLv3:TLSv1.2:!ADH:!aNULL:!AES128"/>"

Tested server suite: All combination of DHE: ECDHE without SSL Tested browsers (successful): edge, Chrome

Firefox error: Secure Connection Failed

An error occurred during a connection to 10.57.108.132:10443. 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.

Learn more…

Report errors like this to help Mozilla identify and block malicious sites


Type of connection: HTTPS

Asked by anurajsreenivasan 3 bliana ó shin

Last reply by FredMcD 3 bliana ó shin