I have come across situations where doing that made the difference between a working software package and one that kept throwing error messages after installation. Important: If you plan to reinstall Firefox on your system, then learn how to backup and restore your Firefox Profile (Bookmarks, Passwords, Settings) by. I tend to always select “Run as administrator” when installing software, even when I am logged in with an account with administrative privileges. Now that you have the installation file, right-click the file and select “Run as administrator” to launch the Mozilla Firefox installation wizard with administrative privileges. If you’re not sure how to do that, please refer to my article on downloading Mozilla Firefox free. If you have done that, you’re absolutely ready to go.įirst you need to download the Mozilla Firefox installation file to your computer to be able to launch the installation wizard that will guide you through the setup process. Having said that, I’d still like to mention that you can have rock-solid, absolute peace of mind if you make a solid backup of your computer prior to installing any software package. Regardless, installing Mozilla Firefox is one of the easiest and most straightforward endeavors you can undertake on your computer, so there should be no stress at your end about destroying your system. Or you have installed software before but your Mozilla Firefox is giving you a headache and you just want to verify the installation procedure.

How to do a clean install of firefox