Make sure no other Firefox windows are running before starting Firefox in Kiosk Mode. You just need to launch Firefox with –kiosk or -kiosk switch via RUN dialog box or Command Prompt and it’ll open in Kiosk Mode. You can consider Kiosk Mode as a single web app mode or digital signage where you can’t interact with Firefox. Kiosk Mode only shows the web page content occupying whole screen area without any browser chrome. You can’t change or customize Firefox options and settings (you can use about:preferences and other similar about URLs to open Firefox Options and other default built-in pages). You can’t open multiple tabs (Ctrl+T hotkey works to open multiple tabs). Status bar is also hidden, so you can’t show website URLs by hovering over hyperlinksįollowing screenshot shows Mozilla Firefox running in Kiosk Mode without any toolbar, titlebar, Taskbar, etc:īasically Kiosk Mode is a highly restricted mode of Mozilla Firefox browser which only lets users to open a web page, nothing else.If you right-click on a web page, nothing happens, no context menu is shown.F11 key doesn’t work to exit from full screen mode.Close, minimize and maximize buttons are also removed, so you can’t close Firefox window.

All toolbars, navigation bar, titlebar, menubar, tab bar, bookmarks bar (favorites bar) are removed/disabled, so you can’t access any menus or options.

Firefox runs in Full Screen mode and you can’t exit from full screen mode.When Firefox is launched in Kiosk Mode, following restrictions or limitations are applied: It allows users to launch Firefox in a very restricted and limited mode best suitable for public areas or customer-facing displays such as libraries, vending machines, etc or for presentations, demonstrations, etc. Kiosk Mode is a hidden secret feature introduced in newer versions of Mozilla Firefox web browser. How to Exit or Close Firefox from Kiosk Mode?.

Firefox opening multiple tabs