This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Ova tema je arhivirana. Pitajte drugo pitanje ako vam je potrebna pomoć.

SSL connection error since update of firefox

  • 1 odgovor
  • 4 ima ovaj problem
  • 1 view
  • Posljednji odgovor poslao cor-el

iamsbee
iamsbee
more options

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.

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.

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

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.