secure connections to yahoo/google fail - unknown critical extension

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• Unable to connect to google after installing windows 10 "secure connection failed".

  I installed windows 10 today.

  now, every time that I can't get to google/youtube to firefox, internet explorer and opera.

  I get this error:

  "Secure connection failed".

  The connection on www.google.com while the page is loading.

     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 would appreciate help, google and youtube are rather important

  Sorry for the delay, long day away.

  With this many cross-browser issues, can you confirm that your system clock date, time, and time zone are all correct? SSL validity checks are time sensitive.

  If you see a globe, I think that you are unable to use an HTTPS address. Usually Firefox displays a padlock or a "!" icon in the shape of triangle on a HTTPS address depending on whether the certificate withdraws or has a problem.

  Is there a code in parentheses, separated by underscores in the error page? If so, could you copy and paste this code.

• I get a 'Secure connection' error failed with google stating "certificate contains the same serial number.

  When I click on a link to a google search, I get the "Secure connection" error failed in Firefox. He says, "please contact the administrator of the server or email correspondent and give them the following information: your certificate contains the same serial number for another certificate issued by the certification authority."

  I followed the instructions here:
  https://support.Mozilla.org/en-us/KB/certificate%20contains%20The%20Same%20serial%20number%20As%20another%20certificate
  and looked at this article:
  https://support.Mozilla.org/en-us/questions/1028103?ESAB=a & As = AAQ

  I uninstalled and reinstalled Firefox, deleted the entire folder profiles and reset Firefox. I see that the older (orphans) article points to my router. However, I have a new router and have updated their software. There is no button to add an exception (as stated in the article), so I can't just work around it. This problem does not occur with IE, so I have a hard time to believe that it is my router.

  How to solve this problem? I really want to change browser.

  Finally, I tracked the issue. The answer was found here:
  https://support.Mozilla.org/en-us/questions/1028985

  It turns out that Avast has a web shield that passes through its own verification of certificate https. Of course, this feature is not quite right and loses track of the certificates. Disable "https scanning" in the settings of Avast resolved the problem.

• Firefox can't confirm a secure connection to Google when you try to search

  I can reach all my favorites without problem, but all the web fail to research without worrying that site search is used (Google Bing Yahoo). I've been using Firefox on this phone successfully for a year (not a new installation)

  The error message is selected as the search engine of Google

  "you asked Firefox to connect to www.google.com, but we cannot confirm that your connection is secure.

  From what I can tell, the star invited session goes back to 25.0 Firefox for Android. What version do you currently use?

• Beveiligde setting mislukt / Secure connection failed

  [NL] ALS ik sites als facebook.com en youtube.com wil openen squeeze fusion ik 'Beveiligde setting mislukt. " Op said hoe los ik? Andere websites als google.com, 9gag.com en instagram.com (eigenlijk alle andere site die ik heb round) doen het wel!

  [EN] When I opened sites like facebook.com and youtube.com , I get the message "secure connection failed". How to solve this problem? Other sites like google.com, 9gag.com , and instagram.com (basically every other site I tried) are doing well!

  What antivirus security software do you have?

  There are security software such as Avast and Kaspersky that intercepts secure connections and sends its own certificate.

  If you cannot inspect the certificate by "I understand the risks", then try this:

  Open the "Add Security Exception" this URL chrome by pasting into the address bar of Firefox and check the certificate:

  • chrome://pippki/content/exceptionDialog.XUL

  In the field of location of this window, type or paste the URL of the Web site.

  • retrieve the certificate via the button 'Get certificate '.
  • Click on the "view..." button. "to inspect the certificate in the certificate display

  You can check details such as the issuer and the certificate chain in the Details tab of the certificate display.
  Check which is the issuer of the certificate.
  If necessary, you can attach a screenshot that shows the display of the certificate.

• Message secure connection Fail of the unit

  I just installed the unit connection Version 8.6.2.20000 - 2. I'm under the license by default until I get my Cisco license files. I added a user and when I call the user and then he attends opening of greeting, attempts to transfer to the operator after the opening connection wishes and play fail secure message.

  I don't know why it does this, the extension I call is configured in the connection. It is the status of remote port monitor output.

  06:46:23, new call, CalledId is 1180, RedirectingId is 1180, origin = 16, reason = 4, CallGuid = 1AAB5982D3F149BAB1696DF72E0C1FB5, =, LastRedirectingId = 1180 CallerName, LastRedirectingReason = 4, PortDisplayName = UCM 8.6 - 001, [origin unknown =], [reason don't = forward no answer]

  06:46:23, AttemptForward

  06:46:23, state - AttemptForward.cde! Model

  06:46:23, event is [NULL]

  06:46:23, PHTransfer

  06:46:23, state - PHTransfer.cde! LoadInfo

  06:46:23, event is [TrueEvent]

  06:46:23, PHGreeting

  06:46:23, state - PHGreeting.cde! PlayGreeting

  06:46:23, call meets the need

  06:46:23, playing the greeting to call manager: opening greeting

  06:46:39, no. DTMF received

  06:46:39, event is [NULL]

  06:46:39, PHTransfer

  06:46:39, state - PHTransfer.cde! LoadInfo

  06:46:39, event is [TrueEvent]

  06:46:39, PHGreeting

  06:46:39, state - PHGreeting.cde! PlayGreeting

  06:46:39, call meets the need

  06:46:39, playing the greeting to call manager: operator

  06:46:47, no. DTMF received

  06:46:48, game wishes for Subscriber: operator

  06:46:48, event is [RecordMsgEvent]

  06:46:48, state - PHGreeting.cde! CheckForPostGreeting

  06:46:48, event is [NULL]

  06:46:48, state - PHGreeting.cde! RecordMsg

  06:46:48, event is [ErrorEvent]

  06:46:48, state - Goto fail safe conversation

  06:46:48, event is [NULL]

  06:46:48, Failsafe

  06:46:48, Failsafe: response

  06:46:48, Failsafe: System greeting

  06:46:48, Failsafe playing quick - /opt/cisco/connection/share/prompts/ENU/PCM/CsFailure/FailsafeENU.wav

  06:46:53, Failsafe: hang up

  06:46:53, Idle

  Is the extension of the user 1180?  Have you changed the default CSS/Partition on UCXN?

  Chris

• Facebook doen'st start over (the secure connection failed)

  Facebook will be not charged more after erase browsing history.
  What can I do?

  Hello, you please see if anything here helps - resolve the error message "secure connection failed".

  If your question is resolved by this or another answer, please take a minute to let us know. Thank you.

• "Secure connection failed" that occur on the growth of number of sites, v40.0.2

  I'm on a Mac network and many of us become "secure connection failed: the page you are you are trying to view are not visible because the authenticity of the received data could not be verified." This number of sites displaying this error increases. It was just Wikipedia.org at the beginning, but now I can't access Mozilla.org! I have tried virtually all solutions that have worked for others, without success, including:

  -Uninstall of Firefox and install the 40.0.2 version

  -setting 'security.tls.version.fallback - limit' 0 or 1

  -setting in "security.tls.version.max" to 0 or 1

  -disable the 'security.ssl3.dhe_rsa_aes_128_sha' and 'security.ssl3.dhe_rsa_aes_256_sha '.

  -Uninstall and creating a profile

  -Check without plugins or add-ons are causing the problem

  -Refreshing Firefox

  And probably others I don't remember. I wish I could put more details browser, but can't because I can't get on Mozilla with Firefox. Please help and thank you very much!

  Which site gives you inappropriate alert rescue - the main www (https://www.mozilla.org/) or this support site? Or is this only a problem when you use a partial domain that redirects, such as https://mozilla.org/?

  Both this site and the www site use TLS 1.2, so Firefox does not need to return to TLS 1.0 in both cases. In addition, Firefox should have no problems connecting to Wikipedia.

  It seems that you do not have a direct connection, there is a proxy server or something else between you and the site or malware.

  If it's common throughout your network, it might be a common agent or something wrong with the router/firewall.

• Secure connection failed for Nginx + Comodo PossitiveSSL while SSLlabs Score is A +.

  I own the Web site https://vzinity.com that runs on Nginx and uses a Comodo PossitiveSSL cert.

  I tested the installation of SSL to https://www.ssllabs.com/ssltest/analyze.html?d=vzinity.com and it gets a grade of A +.

  I tried opening the site with many browsers, but I don't see this problem in Firefox. When I visit the website using Firefox 39 (Windows 7, Windows 8.1, 10 Windows and Linux Mint) I get the following error:

  The secure connection failed

  The connection to vzinity.com while the page is loading.

     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.
  

  Any help will be appreciated.

  Thank you.

  That looks like a problem with bad sniffing user agent.

  It works for me if I change date 20100101 in Gecko/20100101 in on user agent (same Gecko/20100102 works, only Gecko/20100101 does not work).

  • Mozilla/5.0 (X 11; Linux i686; RV:39.0) Gecko/Firefox/39.0 39.0

  The server could be hacked to target only a Firefox user agent.
  You can contact the Web site and ask them to look into this.

• "Secure connection failed" after update to firefox 39

  After update to firefox version 39 I am unable to pay the bill online, purchases invoices etc and received this message "secure connection failed".

  An error occurred during a connection to acs.onlinesbi.com. SSL has received a low ephemeral Diffie-Hellman key in the handshake message exchange the server key. (Error code: ssl_error_weak_server_ephemeral_dh_key)

     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.
  

  Report this error.
  Please help me how to solve this problem. Thank you.

  This indicates that the site is by default an obsolete encryption encryption algorithm that is vulnerable to the attack of 'Blocking' which was in the news earlier this year.

  You can turn off these old present in Firefox to try to force the site to his game. Here's how:

  (1) in a new tab, type or paste Subject: config in the address bar and press ENTER. Click on the button promising to be careful.

  (2) in the search above the list box, type or paste dhe and make a pause so that the list is filtered

  (3) double-click the preference security.ssl3.dhe_rsa_aes_128_sha to true to false (disable Firefox to use this encryption)

  (4) double click on the security.ssl3.dhe_rsa_aes_256_sha preference from true to false (disable Firefox to use this encryption)

  Then try your payment site. Any improvement?

• Why did I receive a message for 2 weeks saying "secure connection failed" on Thunderbird?

  for the last two weeks, I get the "secure connection failed" message and clicking Add exception does not work.
  Help
  It seems that a lot of people have this problem and does not seem to be a practical solution on the help site.
  Thank you
  Terry

  Paul-H,

  Please start a new thread for your problem with the information that you posted above. Provide as much detail as possible.

• the secure connection failed

  Galaxy S4

  I get the following error message when you try to access a page that I have to use several times a day

  > > secure connection failed

  An error occurred during a connection to crew.lirr.org. Cannot communicate securely with counterpart: no common encryption algorithm. (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.<<
  

  The FF for office forum solved a similar problem for me making me enter: config and add the site to security.tls.insecure_fallback_hosts as an exception.

  After typing Subject: config you press the Go button on the keyboard (or the symbol to Enter/Return). To display a screen listing preferences from accesssibility.accessfu.activate.

  Type the search in the upper right corner line and type or paste tls and then pause while the list is filtered.

  If you scroll down, you should find and be able tap tap security.tls.insecure_fallback_hosts , then, in a second time, in the empty space below to enter your host name.

  I have not tested the feature on Android-aid myself. It work?

• Add-ons a message Manager - secure connection failed - how to fix it please

  The secure connection failed

  An error occurred during a connection to services.addons.mozilla.org. The peer 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.
  

  How can I solve this problem. I don't use AVAST
  Thank you

  This is not a Firefox 35.0.1 or any number of version, but with a certificate revoked on services.addons.mozilla.org

  The https://addons.mozilla.org still works fine.

  For playback so you understand how to properly use Bugzilla please no. 'me' also comments in bug.
  Bug 1128368 - cert revoked about breaks services.addons.mozilla.org subject: addons

• Secure connection failed Firefox 33.0.2 (certificate Secure Connection failed sender is invalid.) (Code d'erreur: sec_error_ca_cert_invalid))

  Updated to 33.0.2 and now on some self-signed sites that use my internal network servers, I get the Secure Connection failed Firefox 33.0.2 (certificate Secure Connection failed sender is invalid.) Error code: sec_error_ca_cert_invalid). Sites are used to administer my internal servers and have current certificates. Is there a work around or fix for this problem? I should stay on older versions of FF.

  Thank you.

  Hello bpainter77, I think that this issue will be addressed in a next update - set an exception for pages with a sec_error_ca_cert_invalid error can work with the beta version of firefox 34 already: http://www.mozilla.org/firefox/beta/

• Just downloaded Firefox - and that's WOT WORK. He used still open up to it's own support pages, I just get msgs "secure Connection failed" page-you don't HAVE anything!

  I just downloaded and istalled Firefox. IT WILL NOT WORK. No matter what site I try to open (included of Firefox support website) I get the following:

  The secure connection failed

  An error occurred during a connection to support.mozilla.org. Cannot communicate securely with counterpart: no common encryption algorithm. (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. Alternatively, use the command found in the help menu to report this broken site.
  

  The only reason I installed it is because a University site, I need to use requires Firefox (my IE 10 is not compatible apparently). This is the MOST useless browser I've ever tried! I mean common SERIOUSLY? I do not have the settings even modified, installed add ons, or anything like that! So what is the point of this browser, if you need to be a computer WHIZZ to make repairs before you can use? OMW!

  I already reinstalled the damn thing but still useless...

  in the case where you wish to continue using firefox try eset as described in http://kb.eset.com/esetkb/index?page=content & id = SOLN3126 & viewlocale = en_US