How do I stop a pop-up blocker from blocking a secure message?

To disable the pop-up blocker in Internet Explorer:

• Enter your password in the Registered Envelope and click Open.
• After decryption, the following pop-up blocker message appears in the browser: "Pop-up blocked. To see this pop-up or additional options, click here..."
• Click the pop-up blocker message.
• Click the option to temporarily allow pop-ups.
• Re-enter your password in the envelope, and click Open.
• A new browser window displays the content of the secure message.

To disable the pop-up blocker in Firefox:

• Enter your password into the Registered Envelope, and click Open.
• After decryption, the following pop-up blocker message appears in the browser: "Firefox prevented this site from opening a pop-up window. Click here for options..."
• Click the pop-up blocker message.
• Select the "Allow pop-ups for" option to allow pop-ups for the Secure Envelope.
• Re-enter your password in the envelope and click Open.
• A new browser window displays the content of the secure message.