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I am experiencing difficulties with 3D Secure in Firefox - what's happening?

A small minority of customers are experiencing difficulties completing a booking through 3D Secure - they are receiving a 'the connection was interrupted' error message at the verification stage.

This maybe because of a setting in your Firefox options (it should be enabled by default but maybe inadvertently disabled on some computers).

Please follow these instructions if using Firefox (ensure you are using the latest version):

  • In Firefox, press “Options” > select “Advanced” tab
  • Press the “Encryption” sub-tab and ensure “Use TLS 1.0” is ticked, then press OK
  • Close the browser, reopen it and start from www.irishrail.ie again

3D Secure - Firefox TLS Settings