Keep firefox settings when updating
Though, the Mozilla Maintenance Service is currently only installing updates, Mozilla has stated that it may include other command line arguments for this service that could clear the Windows prefetch, defrag a user's profile, and perform other actions that are not yet discussed.For security reasons, if you are concerned about a program updating itself without your permission or knowledge, it is possible to disable Firefox's silent update feature.You can uninstall the service by uninstalling the Mozilla Maintenance Service entry from within the Add or Remove Programs or Uninstall a Program control panel.You can also uninstall this service directly by running the "C:\Program Files (x86)\Mozilla Maintenance Service\uninstall.exe" command.It should be noted, that if you disable silent updates, that does not mean that you should not install new updates when they become available.If you do not install the updates, you could put your computer at significant risk due to potential security vulnerabilities that these updates may be fixing.By disabling the silent updates Firefox will still be able to update itself, but you will now be prompted with a UAC dialog so that you are aware that an update is occurring.
Firefox on Ubuntu 14.04 just updated to v 47, and it broke some of the stuff I was working on.
This feature is made possible through a Windows service named Mozilla Maintenance Service that is located at %Program Files%\Mozilla Maintenance Service\
This service is not running all the time, but is started via command line arguments when a new Firefox update is available.
If you uninstall this service, though, future updates will not install it again.
In order to install the service again you will first need to do a full reinstall of the program.
Search for keep firefox settings when updating:
Please right click the setup and view the properties.