I would like to be logged into two different gmail accounts at once. In older web browsers, I have been able to achieve this by having two separate windows open. However, the current version of firefox that I have "links" the two windows together, such that when I log into gmail in the first one, and try to log into a different gmail account on the second one, the first account is already open. The only way to log into the second account is to log out of the first. Is there a way to "unlink" the two windows, and have the two gmail accounts open simultaneously?