How do I control the popup blocker settings in Firefox?

The Popup Blocker Options/Preferences are located in the Content panel of Tools > OptionsEdit > PreferencesFirefox > Preferences. 
 From there, you can do the following things: 
 Block Popup Windows: Deselect this option preference to disable the popup blocker altogether. 
 Exceptions dialog: This is a list of sites that you want to allow to display popups. The dialog has the following choices: o Allow: Click this to add a web site to the exceptions list.o Remove Site: Click this to remove a web site from the exceptions list.o Remove All Sites: Click this to remove all of the web sites inthe exceptions list. Note: Blocking popups may not always work and may interfere with some web sites.