If I open two windows of the same brower (two Chrome windows or two FireFox windows) the user is logged in on both. Logging out of one logs out of both.
If I open a Chrome window and a FireFox window, I can have different users logged in at the same time without any issue.
If I open two windows of the same brower (two Chrome windows or two FireFox windows) the user is logged in on both. Logging out of one logs out of both.
If I open a Chrome window and a FireFox window, I can have different users logged in at the same time without any issue.