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certificate problem / SSL Error with Firefox 58.0.1 (64-Bit) Kaspersky Internet Security 17.0.0.611 and active FF Master PW

Since installation of Firefox 58 at Windows 10 I cant access to all SSL / Https pages, also not to Google.com !! Solution is already described by manual updating / delet… (read more)

Since installation of Firefox 58 at Windows 10 I cant access to all SSL / Https pages, also not to Google.com !! Solution is already described by manual updating / deleting and import the Kaspersky certificate (better to edit and simply flag the 3 check boxes of trust setting" for AO Kaspersky Lab).

But: when edit or import the certitificate, always my Master Password for Firefox Password manager is requested. And at next Firefox start the certificate trust setting flag again is blank and previous settings are lost. If no Master Password is set, there is NO Problem. Previous Firefox version had not such problem and works well ! Thanks for your help! All other browser on my PC work well without SSl certificate error!

Asked by Robbi-Fox 2 years ago

Answered by Dulverton 2 years ago

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How do I get access to sites when I receive this message Your connection is not secure The owner of accounts.google.com has configured their website improperly

FIREFOX WILL NOT ALLOW ME TO ACCESS SAFE SITES SUCH AS gmail.com or google.com INSTEAD I RECEIVE THIS MESSAGE: Your connection is not secure The owner of accounts.google… (read more)

FIREFOX WILL NOT ALLOW ME TO ACCESS SAFE SITES SUCH AS gmail.com or google.com INSTEAD I RECEIVE THIS MESSAGE: Your connection is not secure The owner of accounts.google.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website. This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate. Learn more… Report errors like this to help Mozilla identify and block malicious sitesHE THESE SITES ARE AVAILABLE TO ME WHEN I USE SAFARI. HOW DO I TELL FIREFOX TO ALLOW ME ACCESS TO THESE SITES? MADGELAKE

Asked by MadgeLake 2 years ago

Answered by MadgeLake 2 years ago

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Why does Firefox Quantum show 'Insecure Connection' for every website?

My software are Windows 10, Firefox 58, and Bitdefender Internet Security 2018. I can visit websites fine in Microsoft Edge. Win 10 is using Bitdefender's firewall, see s… (read more)

My software are Windows 10, Firefox 58, and Bitdefender Internet Security 2018. I can visit websites fine in Microsoft Edge. Win 10 is using Bitdefender's firewall, see screenshots.

Asked by LAPIII 2 years ago

Answered by philipp 2 years ago

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Any idea how I fix this? It comes up often.

I just downloaded Quantum but can't do much as I keep getting this message. accounts.firefox.com uses an invalid security certificate. The certificate is not trusted beca… (read more)

I just downloaded Quantum but can't do much as I keep getting this message.

accounts.firefox.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. Error code: SEC_ERROR_UNKNOWN_ISSUER

When I click advanced, I get the following:

https://accounts.firefox.com/signup?service=sync&context=fx_desktop_v3&entrypoint=uitour&utm_campaign=page+referral+-+not+part+of+a+campaign&utm_content=%2Ffirefox%2Ffeatures%2Fsync%2F

Peer’s Certificate issuer is not recognized.

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

Certificate chain:

Any assistance would be appreciated

Asked by debnkev 2 years ago

Answered by cor-el 2 years ago

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Kaspersky protection not working with Firefox 58.0

I've been using Firefox successfully with Kaspersky Total Security in Windows 10, which updated to the latest version a few days ago. Today when I switched the computer … (read more)

I've been using Firefox successfully with Kaspersky Total Security in Windows 10, which updated to the latest version a few days ago. Today when I switched the computer on, the Kaspersky Protection symbol in the menu bar was greyed out (produces a strange crossed-out eye -x- screen symbol when clicked) and Firefox can't access any https web sites, presumably because their certificates are managed via Kaspersky. Under 'Add-ons' an error message is listed under Kaspersky Protection: "Reading manifest: Error processing background. persistent: Event pages are not currently supported. This will run as a persistent background page."

I have tried uninstalling and reinstalling Firefox, disabling and re-enabling Total Security, but with the same results.

Asked by Dulverton 2 years ago

Answered by Dulverton 2 years ago

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Unable to access any HTTPS site!!!

I am getting "This site uses HSTS to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception" for all sites that use HTT… (read more)

I am getting "This site uses HSTS to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception" for all sites that use HTTPS.

I am not able to access google.com/mozilla.com etc. had to use Chrome to post this question.

I already tried https://support.mozilla.org/en-US/questions/1159143 but that has not helped. Can someone please help? I am forced to stop using Firefox because of this showstopper.

Asked by atre.avadhut 2 years ago

Answered by atre.avadhut 2 years ago

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Firefox v.58.0 blocks all websites. It's time to go back to the Internet Explorer.

Doesn't matter which website, I can't open any o them with the newest version (58.0). I am permanently getting the following warning: "Your connection is not secure" with… (read more)

Doesn't matter which website, I can't open any o them with the newest version (58.0). I am permanently getting the following warning: "Your connection is not secure" with the error code: "Error code: SEC_ERROR_UNKNOWN_ISSUER". Even to log to your website I had to use the Internet Explorer. What a shame.

Asked by PeterGalan 2 years ago

Answered by WestEnd 2 years ago

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firefox 58, Error code: SEC_ERROR_UNKNOWN_ISSUER

While browsing everything was fine, then firefox updated itself to ver 58, so i closed and reopened it to let it finish. Now ALL websites are showing "Your connection is … (read more)

While browsing everything was fine, then firefox updated itself to ver 58, so i closed and reopened it to let it finish. Now ALL websites are showing "Your connection is not secure" Error code: SEC_ERROR_UNKNOWN_ISSUER.

I tried the following, in no particular order: - reinstalling firefox - deleting profile folder - changing settings to: no proxy - checking my pc with malwarebytes - disabling Kaspersky - tried out ver 59 beta

Nothing works. I am forced to use opera for the time being, no issues there.

As for certificate chain. When clicking on Advanced -> error code, this is all i can copy to clipboard: "" https://www.youtube.com/

Peer’s Certificate issuer is not recognized.

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

Certificate chain: ""

I have never encountered this problem before, thoughts?

Asked by noname126 2 years ago

Answered by noname126 2 years ago

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I cannot access search engines like google or bing. I do not have any of the listed security programs such as kapersky, avg, etc. I use ms security essentials

I updated my Firefox and now I can't access search engines such as google or bing, I get this message: The owner of www.google.com has configured their website improperly… (read more)

I updated my Firefox and now I can't access search engines such as google or bing, I get this message:

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

This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate.

There is no "add exception" option when clicking on the "Advanced" button of the error window.

I have attached a snip of the error.

I do not use any of the previously mentioned security applications. I use Microsoft Security Essentials. Please help!

Asked by csuenram 2 years ago

Answered by cor-el 2 years ago