Take the tour ×  I'm in Gmail with 3 Google accounts signed-in.
When I choose to switch to a different user account from the
drop-down menu in the upper right of Gmail, it pops open a new
Gmail window for the same user as before. What gives?
share|improve this question Which browser are you using? Have
you tried other browsers? –  w3d Nov 12 '12 at 15:08 Try using
the following answer: webapps.stackexchange.com/a/36090/29140 – 
Jacob Jan Tuinstra Jan 11 at 21:36 add comment  3 Answers  This
still happens to me all the time. I find that I need to do the
following:    1. Switch to the account I want to sign in to.
2. When the password screen comes up I enter the WRONG password
and submit the page.(I'm assumming it just cleared the cookies)
3. Now enter the correct password and it should work.  It then
takes me to the correct account. If I just enter the correct
password it always takes me to the wrong account.  share|improve
this answer add comment  This seems to happen from time to time
in my experience