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After upgrade to 36 access to my bankplatform impossible. Error code ssl_error_rx_unexpected_application_data appears.

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  • Last reply by cor-el

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Since automatic upgrade to 36 I can't access my bankplatform anymore. Error code ssl_error_rx_unexpected_application_data appears.

Since automatic upgrade to 36 I can't access my bankplatform anymore. Error code ssl_error_rx_unexpected_application_data appears.

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Is the site TLS 1.3 tolerant or 1.2?

Can you please check if this site also gives the same error in Firefox Developer Edition: https://www.mozilla.org/en-US/firefox/developer/ Reference: bug 1116891

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Clear the cache and remove cookies only from websites that cause problems.

"Clear the Cache":

  • Firefox > Preferences > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Firefox > Preferences > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"

Try to rename the cert8.db file (cert8.db.old) and delete the cert_override.txt file in the Firefox profile folder to remove intermediate certificates and exceptions that Firefox has stored.

If that has helped to solve the problem then you can remove the renamed cert8.db.old file. Otherwise you can rename (or copy) the cert8.db.old file to cert8.db to restore the previously stored intermediate certificates. Firefox will automatically store intermediate certificates when you visit websites that send such a certificate.

If that didn't help then remove or rename secmod.db (secmod.db.old) as well.

You can use this button to go to the currently used Firefox profile folder: