I support a very large school district currently running Firefox 3.6. What will happen at end of life date? We're in the middle of online testing this week.

Question

I run the test center for a very large school district with over 120k students. We've got a current deployed base of 54k client machines using Firefox 3.6. We haven't upgraded due to multiple reasons, the most important of which is removing the possibility of using In Private Browsing from the students, and dealing with plugin-updates for the non digital natives (read dumber than a bag of hammers users) that make up the majority of the client base.
We're testing ESR now, but just found out that end of life for 3.6 is tomorrow, 4/24. We are currently in the middle of statewide online testing. The question is, what will happen tomorrow when the browser goes end of life. The ESR wiki mentions that "an update to the current version of Desktop Firefox will be offered through the Application Update Service"
So the main question is, are my students/teachers going to get a popup telling them they have to update the browser if we have the updates already turned off? If so, can I turn it off remotely using SCCM, because it will cause all kinds of havoc.
Please advise asap, and thanks in advance.

Answer 1

We had to do some serious gymnastics to remove at least most of the ability to use IPB. We removed it from the gui, but unfortunately, if they know the hotkey, they can still bring it up. Security has some serious headaches with this, as by law they have to be able to track where students go, and going with private browsing removes their ability to do forensic work they're required to be able to do. Not a very well thought out feature from Mozilla in my opinion, but it is what it is. Successive versions have made it even more difficult to remove even the gui portion.
We do plan to release ESR due to the aforementioned security issues, but testing has been slow.
But thanks for the reply. I think we can turn off the updates if it isn't already done.