When I connect to Stack Overflow and click on the "login" button, I am taken to the login page, as expected. When I click on "Google" (as I always have), the "Welcome back, Number8, you are being logged in ..." popup appears briefly, then disappears, and I'm not logged in...
Is there a known issue with Firefox, or a configuration setting I haven't figured out yet?
Bonus: I can't seem to post a question on this site from Firefox (I'm using Internet Explorer 10 to post this).
Platform: Windows 7, FireFox 21.0.