Most efficient way to handle Firefox updates in computer labs with DeepFreeze?

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http://serverfault.com – I will soon be taking over responsibility for managing the software on all student computer lab machines at the university where I work. Firefox updates have tended to prove particularly irritating since it presents a tab with information about the update upon each user's first launch after update, and often also has various notification bars at the top (e.g. "Do you want to send us anonymous usage information..."). Since the computers are on DeepFreeze, and since students often use many different computers throughout the semester anyway, Firefox is effectively launching for the first time e (HowTos)