Add a certificate exception - Firefox

This manual is for older systems and/or software and is no longer maintained.

This manual is meant for 1A-server users. It explains how you can ignore certificate warnings in a browser. This warning will be shown when a website uses a certificate which is unknown to your computer.

Certificates are used by browsers to identify websites and to encrypt the communication to and from the website. If a certificate is not trusted, the encryption will not function.

Firefox offers the option to download a certificate and permanently add it as an accepted source. In Internet Explorer it is only possible to grant an exception to a website to a website on a per-session basis; the exception is not remembered.

If you want to add an exception for your 1A-server when it has a servername ending in nl.alt001.com, you can use the manual import 1A root certificate to permanently solve all warnings.

Requirements

To complete this manual, you will need:

• A computer with Firefox

Steps

1

Recognizing a certificate warning

• When a screen like the one besides this step appears, it indicates the presence of a certificate issue

2

Adding the exception

• Click I Understand the Risks
• Click Add Exception...

3

Add certificate to Firefox

• Click Get Certificate
• Click Confirm Security Exception

4

Working with a website containing a certificate warning

• Firefox will no longer display any warnings when visiting this website