Facebook login page keeps popping up randomly?

[muffin]

So I have 3 browsers, IE, Mozilla Firefox and Google Chrome. While I'm using Google Chrome/Mozilla, the facebook login page pops up from IE in 3 different tabs at once, even when IE was closed. And then 10 minutes later, the 3 tabs pop up again, and again and again. So in the end, if I don't erase them, I have 30 facebook login pages open on IE.

Honestly, I'd just erase IE, but my parents always use it and they have their important bookmarks on there.

This is getting really annoying, is there any way to solve this? I don't want to actually login to Facebook on IE because I'm afraid that this might be a scam/virus or something?