1. Launch the Firefox web browser. Click or double-click the Firefox app icon, which resembles an orange fox around a blue globe. You can find it in your Applications folder on a Mac, or on your Start menu on Windows.
1. Launch the Firefox web browser. Click or double-click the Firefox app icon, which resembles an orange fox around a blue globe. You can find it in your Applications folder on a Mac, or on your Start menu on Windows.