Mother fuckers !!! they've not just removed all options to prevent updates ...they hid it

So ... to this date - here is a solution

PHP Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox]
"DisableAppUpdate"=dword:00000001 
copy this into "fix.reg" file ...and run it ...(or do that manually)