We have a terminalserver environment on the base of Windows Server 2016 and since the update to Firefox esr 68.2 the users frequently get a popup with the message in the title (see screenshot). This message pops up even though we disabled automatic updates through about:config and the Firefox Group Policies. We even tried a few not officialy supported solutions like renaming the update.exe or altering the update url in about:config to a non existant domain but nothing worked. Is there any way to disable this message being displayed to the users? Please do not just post "just update to the newest version". That is not always immediately possible in an enterprise environment. Greetings and thanks in advance, Michael H.