Since install of Firefox's 3.6.11, I can't seem to click on the ubiquitous "LIKE" buttons that will post to my facebook page. I get a pop-up box that presumably is where it would allow me to log in to Facebook, but the opens, it's blank and then it closes and repeats over and over until I reload the page. I don't always get a popup warning to allow popups but in most cases, these are news sites (CNN) or a few major blogs (Huffington Post, OhMyGov) and they are in my allow popups lists.