Should I use Internet Explorer or Firefox on Windows?
The Internet Explorer web browser “outsources” its handling of certificates to a module of the Windows operating system called the Crypto API (or CAPI, for short). Unfortunately, this means that there are dozens of configuration items that can (and do) affect certificate functions when using Internet Explorer.
The ORC ECA Certificate servers support Internet Explorer on Windows XP, Vista, 7, and 8, but you might encounter technical issues due to any number of configuration items on your computer or your domain. If you encounter a problem (or are concerned that you might encounter a problem), you could submit your requests for ORC ECA-SW5 identity and encryption certificates through Mozilla Firefox
Mozilla Firefox is available at http://www.mozilla.org/
Once your new ORC ECA-SW5 identity and encryption certificates are issued, you must install your ORC ECA-SW5 identity and encryption certificates on the same computer and same browser
(e.g. Mozilla Firefox) and same network profile from where you applied for your ORC ECA-SW5 identity and encryption certificates. If you submit your requests for ORC ECA-SW5 identity and encryption certificates through Mozilla Firefox, you must not uninstall Mozilla Firefox or allow any upgrades until after you install your ORC ECA-SW5 identity and encryption certificates and then make backup copies of your ORC ECA-SW5 identity and encryption certificates to external device (e.g. flash drive, network drive).
Microsoft Internet Explorer, Apple Safari, and Google Chrome can (and do) use the certificates perfectly well once they are issued. The problems are experienced in creating the certificate, which is most reliable on Mozilla Firefox. Once the certificate acquisition process has been fully completed, you will be able to move your certificate into the web browser that you wish to use.