Starting with Firefox version 120 on Windows and Firefox version 156 on macOS, you can set Firefox to automatically launch whenever you start or restart your computer. Setting Firefox to auto-launch optimizes efficiency in our browser-centric digital routines, eliminating manual startup delays and facilitating immediate web access.
Opt-in prompt
If you have previously chosen Firefox as your default browser, an opt-in message will appear. Simply click
to enable it.
Manual configuration
Didn’t receive the prompt? Follow these steps to manually set up auto-launch:
- In the Menu bar at the top of the screen, click and select (or , in some cases).Click the menu button
and select .
- In the page, locate and select the Open Firefox automatically when your computer starts up option.

- Note: This option may not be available if you opted out of Studies in Firefox Settings.
- If prompted with This preference has been disabled in Windows, click the Startup Apps link. This will guide you to the appropriate section in Windows' system settings.
- Close the page. Any changes you've made will automatically be saved.
- In the Menu bar at the top of the screen, click and select (or , in some cases).Click the menu button
and select .
- In the page, locate and select the Open Firefox automatically when your computer starts up option.
- Close the page. Any changes you've made will automatically be saved.