Secure Connection Failed Error in Firefox Browser

Diffie-Hellman key exchange is a cryptographic algorithm, it allows Internet protocols to agree on a shared key and negotiate a secure connection. It has been reported that this protocol is not strong enough to prevent compromise on the web.

Singularity is a legacy program, in order to continue using this product we need to go around the problem.

Install the "Disable DHE" plug-in below to work around the problem and fix this error.

Note: This procedure will disable weak Ciphers used by Firefox.
"Secure Connection Failed" error when launching Singularity web page within Firefox or clicking on the View Docs link within PeopleSoft.

1. Launch Firefox
   1. Click on the menu button on the right top of the web browser.
   2. Then select the "Add-ons" icon as in the image below.
      
      
2. On the next screen:
   1. Click "Plugins" on the left side menu.
   2. Then type "Disable DHE" in the search field as in the image below.
      
      
3. Install the Plugin
   1. On the next screen you will see "Disable DHE 0.1.2".
   2. Click on the "Install" button next to it.