FireFox disable automatic updates

Open the Start menu.
Type regedit.exe and select the
result.
Confirm the UAC prompt that may be displayed.




If any of the keys do not exist create them with a right-click on the previous key and the selection of New > Key.
Go to
HKEY_LOCAL_MACHINE\Software\Policies\Mozilla\Firefox.
Right-click on Firefox and select New >
Dword (32-bit) Value.
Name it DisableAppUpdate.
Set its value to 1.