How do i install Firefox and set it as default on Windows 10?
To install Firefox on Windows 10. First go to the firefox download page, you can find https://www.mozilla.org/. Then look for a button called Download Firefox. Once the download completes open the installer and follow its directions.

To set Firefox as the the default browser, first open Firefox. Then click the menu button in the top-right corner, and go to the options menu. There you will find the general menu, look for the button Make Default click it and accept the prompt to set Firefox as the default browser on Windows 10.
Thank you for your help. I will try that out and see how it goes.