How to make firefox my default browser

Thank you for reaching out to the Mozilla Support community. To set Firefox as your default browser on Windows 10, you can follow these steps: 1) Open Firefox, click the menu button (three horizontal lines) in the top-right corner, and select Settings. 2) Under the General panel, look for the Startup section. 3) Click the Make Default... button. 4) Windows Settings will open. Under Web browser, click on your current default browser and select Firefox from the list. Please let us know if you run into any trouble or need further assistance!