Soon log in more than one account at the same time and Rank on the same browser

Not to anyone that I have more than one account at the Rank of one particular site and the other my account but when I want to enter each account had to run most of the browser or use the feature Altcefhi hidden a window chrome and then login to each account in each window and this is a pain for me, so I found Rank solution to this problem by allowing for both accounts logged on once and on the same browser, showing this feature to a group of users who got a chance to try this feature.