Allowing All Pop-Ups in Firefox

  1. In Mozilla Firefox, click the menu buttons (the button with the three lines) .  A side bar will appear on the right side of the Firefox window.
  2. In the side bar, click on the Settings button.  The Settings tab will appear in your Firefox window.
  3. In the Settings tab, in the pane on the left, click on Privacy and Security.
  4. On the content page, scroll down to Permissions, then uncheck the box that says Block pop-up windows.