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Firefox 78 ESR cannot accept certificate exclusion for HSTS-enabled Website

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any_mail
any_mail
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Hello, After upgrade FF ESR 68 -> ESR 78 i lost the possibility to connect to HSTS enabled websites (tested on duckduckgo.com and my nextcloud) on work network.

Work network issue intermediate certificate and with FF 78 i am forced to install that zscaler certificate to make website work, I cannot accept that certificate temporarely.

How to reenable possibility to add exceprion for hsts enabled websites?

Windows 7 Firefox ESR 78 Portable.

For now I downgraded to FF 68.

Hello, After upgrade FF ESR 68 -> ESR 78 i lost the possibility to connect to HSTS enabled websites (tested on duckduckgo.com and my nextcloud) on work network. Work network issue intermediate certificate and with FF 78 i am forced to install that zscaler certificate to make website work, I cannot accept that certificate temporarely. How to reenable possibility to add exceprion for hsts enabled websites? Windows 7 Firefox ESR 78 Portable. For now I downgraded to FF 68.
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Solution choisie

It looks that you have other software installed on your computer that intercepts the connection and act as a man-in-the-middle. Firefox doesn't trust this certificate and you would have to install its root certificate.

You can try to set security.enterprise_roots.enabled = true on the about:config page.

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

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cor-el
cor-el
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Solution choisie

It looks that you have other software installed on your computer that intercepts the connection and act as a man-in-the-middle. Firefox doesn't trust this certificate and you would have to install its root certificate.

You can try to set security.enterprise_roots.enabled = true on the about:config page.

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

any_mail
any_mail Auteur de la question
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cor-el said
It looks that you have other software installed on your computer that intercepts the connection and act as a man-in-the-middle. Firefox doesn't trust this certificate and you would have to install its root certificate. You can try to set security.enterprise_roots.enabled = true on the about:config page. You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

Thak you. It work well.