I have one specific user that has seen this behavior persist across two computers. He uses Firefox by default, and every time an update is released, he submits a help desk ticket to have an administrator type in their password. This is extremely irritating for the user, and for IT. I recently got involved to try and fix this issue. I tried running the uninstaller, then manually scrubbing out anything associated with Firefox that I could find, rebooting, and reinstalling using the offline installer package WITH the maintenance service. The maintenance service definitely shows up, it's set to run as the local SYSTEM account, and set to manual start. Launching it myself yields the message "This service started and stopped on it's own", so I assume that means that it needs to be called by some function in Firefox itself (this hypothesis is supported by the fact that manually launching the maintenance service creates a log that ends with "Not enough arguments to start service"). Then an update was released, and the user got a prompt for privilege escalation. This time, I did a full process monitor capture before updating. I captured the following 3 scenarios. 1. Launching Firefox, selecting "No" to the privilege escalation (consent.exe) window 2. Manually starting the Maintenance Service 3. Launching Firefox, and providing administrator credentials to the escalation window. One thing I immediately noticed is that the application getting invoked by Firefox ISN'T the maintenance service. It's a .exe file called "updater.exe". The updater.exe application is the actual program asking for escalation. I've confirmed that the checkbox in Advanced Settings for using the maintenance service is selected, so I'm at a loss at this point. Does anybody have any ideas?