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Can't access facebook

Hi Mozilla, My Firefox browser updated and I can no longer access facebook, twitter, or other sites. Below is an example of the error message I get. https://www.faceboo… (read more)

Hi Mozilla,

My Firefox browser updated and I can no longer access facebook, twitter, or other sites. Below is an example of the error message I get.

https://www.facebook.com/

Peer’s Certificate issuer is not recognized.

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

Certificate chain:


BEGIN CERTIFICATE-----

MIIGMDCCBRigAwIBAgIQC5bdGAoK9GcNIRNiI5SkMjANBgkqhkiG9w0BAQsFADBw MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 d3cuZGlnaWNlcnQuY29tMS8wLQYDVQQDEyZEaWdpQ2VydCBTSEEyIEhpZ2ggQXNz dXJhbmNlIFNlcnZlciBDQTAeFw0xOTAzMDgwMDAwMDBaFw0xOTA2MDYxMjAwMDBa MGExCzAJBgNVBAYTAlVTMQswCQYDVQQIEwJDQTETMBEGA1UEBxMKTWVubG8gUGFy azEXMBUGA1UEChMORmFjZWJvb2ssIEluYy4xFzAVBgNVBAMMDiouZmFjZWJvb2su Y29tMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEUYmYl/ughsSSMESPSvbZ+WME uccF7tfZDid9xH/jVCpLi5ev+jepkowB/kPmMHUM7jFtIdo9G8pH4+w/UsqQ8KOC A54wggOaMB8GA1UdIwQYMBaAFFFo/5CvAgd1PMzZZWRiohK4WXI7MB0GA1UdDgQW BBROAwZhQ6neuhjMDSYDfYGOoatHqTCBxwYDVR0RBIG/MIG8gg4qLmZhY2Vib29r LmNvbYIGZmIuY29tgg4qLnh6LmZiY2RuLm5ldIIOKi54eS5mYmNkbi5uZXSCDGZh Y2Vib29rLmNvbYIOKi5mYWNlYm9vay5uZXSCECoubS5mYWNlYm9vay5jb22CCCou ZmIuY29tgg4qLnh4LmZiY2RuLm5ldIIPKi5tZXNzZW5nZXIuY29tggsqLmZiY2Ru Lm5ldIINbWVzc2VuZ2VyLmNvbYILKi5mYnNieC5jb20wDgYDVR0PAQH/BAQDAgeA MB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjB1BgNVHR8EbjBsMDSgMqAw hi5odHRwOi8vY3JsMy5kaWdpY2VydC5jb20vc2hhMi1oYS1zZXJ2ZXItZzYuY3Js MDSgMqAwhi5odHRwOi8vY3JsNC5kaWdpY2VydC5jb20vc2hhMi1oYS1zZXJ2ZXIt ZzYuY3JsMEwGA1UdIARFMEMwNwYJYIZIAYb9bAEBMCowKAYIKwYBBQUHAgEWHGh0 dHBzOi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwCAYGZ4EMAQICMIGDBggrBgEFBQcB AQR3MHUwJAYIKwYBBQUHMAGGGGh0dHA6Ly9vY3NwLmRpZ2ljZXJ0LmNvbTBNBggr BgEFBQcwAoZBaHR0cDovL2NhY2VydHMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0U0hB MkhpZ2hBc3N1cmFuY2VTZXJ2ZXJDQS5jcnQwDAYDVR0TAQH/BAIwADCCAQQGCisG AQQB1nkCBAIEgfUEgfIA8AB2ALvZ37wfinG1k5Qjl6qSe0c4V5UKq1LoGpCWZDaO HtGFAAABaVzxBoUAAAQDAEcwRQIgFz+1EcKmydHQMSNzfBgQQJ2+0a4+Kr3fzDhj MPF9d6sCIQDRpbiMtGJECRAY66i5KfCYQAupiWYIVBzgERSX1tH7/wB2AId1v+dZ fPiMQ5lfvfNu/1aNR1Y2/0q1YMG06v9eoIMPAAABaVzxB8cAAAQDAEcwRQIhAMMp z3zpdchLbfisbsbtvlBrpIeu2ZvmM2EfLJjqvrWrAiBSDjYmuDWsch7Joe9xN/DX wRH1Taq0C3PLS2p9m9Im9TANBgkqhkiG9w0BAQsFAAOCAQEAHmf0wFs0wLW2boGp nytfqKiD6zX1B4MJl70UDTd3HwG9+uQsaNgwRBlN3NNmXDgdGNSwhDzORhr4cZfn G+J/8DMsfVBousEwP7FTSFdjaAkUW9RbZCJaMKOcs5efUX4p+Up4axiR2/L8cnr9 t3MavjXe4FkKZAbBIU4igKwzjejm4o+rG7dytV7Gug1HO2UO2Cu6CtOC6EcnOwQb 2h2/TTLg3XDHTyfKgpLJkrilMEs98mlrMvCj9KOqoAFAKhmH6Rj9zIfqGJ7ifEb/ T83fLQfoQ4auwB7Rmv8HoxjU2rPEqs6POgKKaomeVVnkCJq89tdcoPPlWgwzuQsd /TRiYQ==


END CERTIFICATE-----
BEGIN CERTIFICATE-----

MIIEsTCCA5mgAwIBAgIQBOHnpNxc8vNtwCtCuF0VnzANBgkqhkiG9w0BAQsFADBs MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 d3cuZGlnaWNlcnQuY29tMSswKQYDVQQDEyJEaWdpQ2VydCBIaWdoIEFzc3VyYW5j ZSBFViBSb290IENBMB4XDTEzMTAyMjEyMDAwMFoXDTI4MTAyMjEyMDAwMFowcDEL MAkGA1UEBhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3 LmRpZ2ljZXJ0LmNvbTEvMC0GA1UEAxMmRGlnaUNlcnQgU0hBMiBIaWdoIEFzc3Vy YW5jZSBTZXJ2ZXIgQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC2 4C/CJAbIbQRf1+8KZAayfSImZRauQkCbztyfn3YHPsMwVYcZuU+UDlqUH1VWtMIC Kq/QmO4LQNfE0DtyyBSe75CxEamu0si4QzrZCwvV1ZX1QK/IHe1NnF9Xt4ZQaJn1 itrSxwUfqJfJ3KSxgoQtxq2lnMcZgqaFD15EWCo3j/018QsIJzJa9buLnqS9UdAn 4t07QjOjBSjEuyjMmqwrIw14xnvmXnG3Sj4I+4G3FhahnSMSTeXXkgisdaScus0X sh5ENWV/UyU50RwKmmMbGZJ0aAo3wsJSSMs5WqK24V3B3aAguCGikyZvFEohQcft bZvySC/zA/WiaJJTL17jAgMBAAGjggFJMIIBRTASBgNVHRMBAf8ECDAGAQH/AgEA MA4GA1UdDwEB/wQEAwIBhjAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIw NAYIKwYBBQUHAQEEKDAmMCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2Vy dC5jb20wSwYDVR0fBEQwQjBAoD6gPIY6aHR0cDovL2NybDQuZGlnaWNlcnQuY29t L0RpZ2lDZXJ0SGlnaEFzc3VyYW5jZUVWUm9vdENBLmNybDA9BgNVHSAENjA0MDIG BFUdIAAwKjAoBggrBgEFBQcCARYcaHR0cHM6Ly93d3cuZGlnaWNlcnQuY29tL0NQ UzAdBgNVHQ4EFgQUUWj/kK8CB3U8zNllZGKiErhZcjswHwYDVR0jBBgwFoAUsT7D aQP4v0cB1JgmGggC72NkK8MwDQYJKoZIhvcNAQELBQADggEBABiKlYkD5m3fXPwd aOpKj4PWUS+Na0QWnqxj9dJubISZi6qBcYRb7TROsLd5kinMLYBq8I4g4Xmk/gNH E+r1hspZcX30BJZr01lYPf7TMSVcGDiEo+afgv2MW5gxTs14nhr9hctJqvIni5ly /D6q1UEL2tU2ob8cbkdJf17ZSHwD2f2LSaCYJkJA69aSEaRkCldUxPUd1gJea6zu xICaEnL6VpPX/78whQYwvwt/Tv9XBZ0k7YXDK/umdaisLRbvfXknsuvCnQsH6qqF 0wGjIChBWUMo0oHjqvbsezt3tkBigAVBRQHvFwY+3sAzm2fTYS5yh+Rp/BIAV0Ae cPUeybQ=


END CERTIFICATE-----

Asked by Adze99 1 year ago

Answered by jscher2000 1 year ago

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I can't browse on any page: they all result not safe. Why?!?!

I have an Mac OS Sierra 10.12.6. Last week I updated Firefox and suddenly can't browse on any page: they all result not safe. Why?!?! My version is in Italian: "Questa co… (read more)

I have an Mac OS Sierra 10.12.6. Last week I updated Firefox and suddenly can't browse on any page: they all result not safe. Why?!?! My version is in Italian: "Questa connessione non è sicura". Unfortunately it's not just the case of a single website but any website I try (firefox homepage itself).

Asked by gioia.forti 1 year ago

Answered by FredMcD 1 year ago

  • Solved

Many sites not loading due to PR_END_OF_FILE_ERROR

For some time now - two or three weeks - I experience R_END_OF_FILE_ERROR on many websites. It is only under Firefox. And not on all sites. One example is coronavirus.bg.… (read more)

For some time now - two or three weeks - I experience R_END_OF_FILE_ERROR on many websites. It is only under Firefox. And not on all sites. One example is coronavirus.bg. I can't open it under Firefox. I use Firefox v.75 on Windows 7. I tried:

  • checking TLS settings - screenshot attached. Seems fine.
  • clearing the cache; didn't help.
  • turning network.dns.disableIPv6 to 'true'; didn't help.
  • turning network.dns.disablePrefetch to 'true'; didn't help.
  • restarting Firefox with add-ons disabled; didn't help.
  • scanning for malware; Malwarebytes didn't find any.

I am also attaching my browser test results from ssllabs.com.

I honestly don't know what to do and what is the issue. Please advise.

Asked by radi.stoyanov 2 months ago

Answered by radi.stoyanov 2 months ago

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Insecure connectoin on one website after another.

All websites are giving me an error. City & state governments and websites I used yesterday, etc. I don't want to do anything foolish, but this has become tedious. I … (read more)

All websites are giving me an error. City & state governments and websites I used yesterday, etc.

I don't want to do anything foolish, but this has become tedious.

I have none of the AVs listed in your instructions and Avira never presented problems before.

This is just one example: budget.weho.org uses an invalid security certificate. The certificate is only valid for the following names: *.herokuapp.com, herokuapp.com Error code: SSL_ERROR_BAD_CERT_DOMAIN

Asked by CiaoBella1 2 years ago

Answered by cor-el 2 years ago

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Getting "Secure Connection Failed" message on site that works fine in Chrome and has an A+ from Qualys SSL Labs and Mozilla Observatory

When trying to load my personal Nextcloud instance, I receive the error in the title. I have tested the site every way I can think of, but the site's security is fine. Th… (read more)

When trying to load my personal Nextcloud instance, I receive the error in the title. I have tested the site every way I can think of, but the site's security is fine. The site loads fine in Chrome and on the Android version of Firefox. When using chrome://pippki/content/exceptionDialog.xul , I received the error "This site attempts to identify itself with invalid information." Only problem is, after looking through the cert, I can't find anything that's invalid. I have attached everything I can think of that's relevant.

I have tried a new profile (same error), Safe Mode (same error), disabling security.ssl.enable_ocsp_stapling in about:config, disabling my antimalware (Windows Defender), and refreshing Firefox. I don't know what else I can do to try and fix this.

Asked by aveilleux 1 year ago

Answered by aveilleux 1 year ago

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Why can't I connect to wellknown charity websites eg Unicef, Compassion in World Farming, etc? it is most frustrating.

I've always been able to donate to charities fairly easily online, but keep getting the "insecure host" message. Surely these are well-known charities that presumably run… (read more)

I've always been able to donate to charities fairly easily online, but keep getting the "insecure host" message. Surely these are well-known charities that presumably run secure websites. I now have FSecure to protect my laptop and phone; could it be that? My brother says I need someting like FSecure, my son says Firefox alone should be enough. Don't know! Thanks S Peach (UK)

Asked by suepeach 2 years ago

Answered by FredMcD 2 years ago

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I can't log on to the Apple Communities site

I get the following message when I log into the Apple Communities site: Blocked by Content Security Policy This page has a content security policy that prevents it from b… (read more)

I get the following message when I log into the Apple Communities site:

Blocked by Content Security Policy This page has a content security policy that prevents it from being loaded in this way. Firefox prevented this page from loading in this way because the page has a content security policy that disallows it.

Is this to do with my settings or Mozilla's?

Asked by david2015 2 years ago

Answered by Shadow110 2 years ago

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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… (read more)

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 2 years ago

Answered by ahiestand 2 years ago

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dropping dns

Hello: I really need your assistance...I seem to have a problem connecting to the internet with Firefox...The system says that the DNS server is not available...Believe m… (read more)

Hello: I really need your assistance...I seem to have a problem connecting to the internet with Firefox...The system says that the DNS server is not available...Believe me, I have tried every suggestion I can find...I have reset the DNS address with several alternate addresses, cleared caches, refreshed Firefox and so on...When the system does connect, it displays the homepage but then drops again...My internet connection is working fine (I am using it now on my laptop)...Can anyone advise something I can do? Thanks very much....

Asked by ltcsz 1 year ago

Answered by ltcsz 1 year ago

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certdata.txt is including 2 expired certificates

Dear Firefox support, I would like to share with you that your certdata.txt file is including 2 expired CA certificates: | Expiration date | Certificate CN | | 2019-07-06… (read more)

Dear Firefox support,

I would like to share with you that your certdata.txt file is including 2 expired CA certificates: | Expiration date | Certificate CN | | 2019-07-06 | Class 2 Primary CA | | 2019-07-09 | Deutsche Telekom Root CA 2 |

New certificates should be retrieved for these 2 CA, or they should be deleted from the certdata.txt as they are no longer valid.

certdata.txt References:

 nss: 'https://hg.mozilla.org/projects/nss/raw-file/default/lib/ckfw/builtins/certdata.txt',
 central: https://hg.mozilla.org/mozilla-central/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
 beta: https://hg.mozilla.org/releases/mozilla-beta/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
 release: 'https://hg.mozilla.org/releases/mozilla-release/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',

Thanks for your help.

Asked by vlours 11 months ago

Answered by jscher2000 11 months ago

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firefox fresh install not working on fresh windows 10 install

I did a fresh install of windows and a fresh install of firefox and in getting SEC_ERROR_UNKNOWN_ISSUER every time I try to go to google. I tried the about:config fix and… (read more)

I did a fresh install of windows and a fresh install of firefox and in getting SEC_ERROR_UNKNOWN_ISSUER every time I try to go to google. I tried the about:config fix and that didn't work for me. it says that the site is using hsts specify that Firefox may only connect to it securely. I'm using my private home network for internet.

Asked by conner1245 1 year ago

Answered by FredMcD 1 year ago

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TLS Chain issues but trusted?

I have checked one website to check if there is an Problem, and there was it. Why is this site TRUSTED? may I know it? here is a tested site link of it : https://www.ssl… (read more)

I have checked one website to check if there is an Problem, and there was it. Why is this site TRUSTED? may I know it?

here is a tested site link of it : https://www.ssllabs.com/ssltest/analyze.html?d=neis.go.kr

Asked by SJang_ 1 year ago

Answered by jscher2000 1 year ago

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www.powerof10.info is safe! I am denied access by Mozzilla, why?

For years I have had access to this site that I need for my work. Now it is denied and I don't know why. The reason says contact the site owners but Virginmedia gives the… (read more)

For years I have had access to this site that I need for my work. Now it is denied and I don't know why. The reason says contact the site owners but Virginmedia gives the site a green tick as good and safe. Please help.

Asked by Tonyb36 2 years ago

Answered by FredMcD 2 years ago

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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… (read more)

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 2 years ago

Answered by snowbunny 2 years ago

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SEC_ERROR_OCSP_MALFORMED_RESPONSE on https://www.google.be and https://www.youtube.com ?

Since some days I get SEC_ERROR_OCSP_MALFORMED_RESPONSE on https://www.google.be and https://www.youtube.com I checked all information from Mozilla and on internet but d… (read more)

Since some days I get SEC_ERROR_OCSP_MALFORMED_RESPONSE on https://www.google.be and https://www.youtube.com I checked all information from Mozilla and on internet but didn't find any solution.Time setting is verified and ok. Other users on the same computer do not have this problem. Has somebody a clue ?

Asked by Tom 1 year ago

Answered by Tom 1 year ago

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Add ons page in Firefox displayed in poor graphics - issues with plugins?...

Hello, for the past 2 days my Firefox on my laptop has been acting weird when it has suddenly refreshed itself. When I go to the Add-ons page, the graphics looks very poo… (read more)

Hello, for the past 2 days my Firefox on my laptop has been acting weird when it has suddenly refreshed itself. When I go to the Add-ons page, the graphics looks very poor (see attached image) and so does Youtube. I went to see if any plugins were having issues and saw that the Java toolkit is at some vulnerable state and cannot be accessed (Firefox simply won't let me to that Java page as it is untrusted). I was trying to re-install the Session manager add on, but the entire graphics of that Add-ons' page looks disabled. My Firefox is up to date, according to the to Firefox itself. Please advise me what to do, as I would very much like to get my old (proper working) Firefox back, and which would be the best way to uninstall it, as clearly that didn't work either?

Thank you all in advance.

Asked by Micodude 3 years ago

Answered by philipp 3 years ago

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Why are certain functions not available to me?

On my desktop version of Firefox, the option shown in this screenshot is disabled: http://screencast.com/t/k7YIzNTC9C7. It's not greyed out on my laptop version. Also,… (read more)

On my desktop version of Firefox, the option shown in this screenshot is disabled: http://screencast.com/t/k7YIzNTC9C7. It's not greyed out on my laptop version.

Also, I'm not able to select the "Always Enable" option to always enable notifications from certain websites in my browser on my desktop, but I'm able to do it on my laptop.

Both versions are updated to 36.0.4.

Asked by Heather_L 5 years ago

Answered by cor-el 5 years ago