Hi Richard, are you looking to install Firefox on a desktop computer (Windows, Mac, Linux) or on a mobile device? Here are some articles that might help: * [[How to install Firefox on Windows]] * [[How to download and install Firefox on Mac]] * [[Install Firefox on Linux]] * [[Install Firefox on your iPad, iPhone or iPod]] * [[Install Firefox on an Android device using Google Play]] Can you find the steps you need? Regarding other browsers, don't remove them just yet. There might be some data saved in that there that Firefox can't move over automatically.