SSL connection error since update of firefox
Since upgrading to firefox 37, navigating to URL www.jncb.com/internetbanking.php?RetailLogin results in the error below being displayed:
Secure Connection Failed
An error occurred during a connection to retail.ncbelink.com. SSL received a record with an incorrect Message Authentication Code. (Error code: ssl_error_bad_mac_read)
I am a member of staff at the company that runs the website and seeking ant clues as to what is required to resolve the issue permanently for users.
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The website may try to fallback to TLS 1.0 in a way that is no longer allowed in current releases.
- Connection Encrypted (TLS_RSA_WITH_AES_256_CBC_SHA, 256 bit keys, TLS 1.0)
You can open the about:config page via the location/address bar and use its search bar to locate this pref:
- security.tls.insecure_fallback_hosts
You can double-click the line to modify the pref and add the domain to this pref. If there are already websites (domains) in this list then add a comma and the new domain (no spaces). You should only see domains separated by a comma in the value column.
You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.