Fortunately, you don’t have to get a different browser for each email address, as Gmail allows you to switch between up to four accounts on the same browser.

If you are a personal user, you would most likely need one or two email addresses. You must however verify your account with a phone number, as part of the several safety verifications Gmail has put in place to ensure the proper use of this service. So, every IP address can have not more than four Gmail accounts. Currently, you are allowed to create up to four accounts using the same computer system or phone number.