We use Citrix XenApp and want to manually update our read only VDisk but do not want to get prompted to update Mozilla every time a browser page is launched once out of sync with the current version of Mozilla. We have modified tools > Options >advanced > never check for updates, but this seems to not work for us. Users are still getting prompted. Is there any way I can suppress this at a lower level? We will updated Mozilla soon after release, but our roll-out schedule is not always in line with your release. We just trying to make a smoother end user experience for everyone.