Final answer:
Typically, multiple users cannot sign into UF sites on the same browser at the same time; a new session would require logging out the first user.
Step-by-step explanation:
The ability for multiple users to sign into University of Florida (UF) sites on the same browser simultaneously is generally false. Typically, web browsers are designed to handle a single set of credentials for a given site at a time. This means that if a user signs into a UF site, any attempt to sign into another UF account would normally require the first account to be logged out. However, some browsers offer features such as incognito mode or the ability to create multiple profiles, which can enable different users to sign in without interfering with each other's sessions, but these are technically separate browser instances, not simultaneous logins on the same browser instance.