What do you get if go to flickr.com? (DON'T do it if you don't want to reboot)

Yesterday and I go there, for the first time, and it gets me to sign in my yahoo account and flickr immediately starts to ask me if I want to close the window. And whether I click yes or no, or whether I try to close the window, or whether I try to go to my Fluther or other tabs, it just keeps adding flickr windows. I also tried to drag the window out of the screen (I don’t know) So I did the rebooting. I wasted too much time redoing many things. By the way, I just tried to go to flickr through a search result:
http://www.flickr.com/photos/trevino/4509001429/
there is no problem there, but I am afraid of going to the “create an account”/sign in page.

I don’t know if I really had to reboot. Did I have to, or is there another way of solving the problem?