Allow Popups From A Site?

[Sanpam]

I'm trying to access this login page, and all I get is a blue screen. It 
works with IE, and a window appears in the middle to type in your info.
It may have to do with popups, but I can't figure out how to enable them 
on this site. When I click "allow popups on this site" from the menu 
bar, it takes me to the cookies manager page. I don't see anything 
related to popups there. Can anyone help?
https://sleepiq.sleepnumber.com/#/signin
_______________________________________________
support-seamonkey mailing list
support-seamonkey@lists.mozilla.org
https://lists.mozilla.org/listinfo/support-seamonkey