How can I have multiple browsing sessions in Google Chrome?
Chrome supports multiple user profiles, you can make use of this to have multiple browsing sessions.
Click on the Chrome Menu (Mac users: Chrome-Preferences) → Click on Add New User. Now, there's a new instance of Chrome with a entirely different profile from the current user, so the cookies and the like are not shared.
Now, when you launch a new window, you can select a user profile to switch between & hence have multiple sessions.
I don't know about the MAC, but
mkdir newProfile
chrome --user-data-dir=newProfile
Works great here on Linux!
Try using an Incognito window.