we use FF as default browser for our web application (desktop), delivering it as default browser on the hardware we deliver and as the advised web browser for desktops. The very annoying thing is that after updates to newest versions (it lately happened with update to FF 24) the page settings are not kept. Instead they are back to the default values as if it was a new installation. We use the page settings to have clean prints. That is: without disturbing headers and footers and with margins to 0 (zero). I 've been searching for a while why this happens and could find a solution. As customers are vigorously complaining now, we have to reconsider our browser policy.