Heh, no porn here, sorry. (Do I hear a feature request? ;)
That's weird. Try this if you haven't yet: click here, but instead of clicking the "Click here to start download.." link, right-click, Save Link As ijlogin-0_0_2.xpi. Open that file from the Download Manager.
If that doesn't work, let me know and I'll look for some less ad-tastic file hosting.