In Firefox, a ribbon will appear toward the top of the browser window to indicate a pop-up has been blocked. To accept the blocked pop-up, click the Options button to the right, then select Allow pop-ups for this site or click Show [URL] to simply override the block.

1. Click the Firefox menu in the upper-right corner.
   • 
2. Select Options or Preferences under the gear icon.
3. Click Privacy and Security on the left-hand side
4. Scroll down to Permissions
5. Uncheck Block pop-up windows

Or

Add trusted site in Firefox

• Check Block pop-up windows
• Click Exceptions
• Type https://ma-andover.myfollett.com
• Click Allow
• Click Save Changes