You may want to try one of these two ways: * Setup Windows Service Silence Updates. Please refer to this link from Mozilla Wiki:- https://wiki.mozilla.org/Windows_Service_Silent_Update * Create a batch script, that you can run from your command prompt to install the updates. A gentleman on Stackoverflow, has put up one good script, that I tried. Here is a link to it, in case you would like to give it a try:- https://stackoverflow.com/questions/29768157/silently-updating-firefox-via-command-prompt-windows Let me know how it goes.