- Download the newest free version of Mozilla Firefox from http://www.mozilla.org/en-US/firefox/new
- Close any programs you have running.
- Locate the installer .exe (Ex.: "Firefox Setup 11.0.exe") and double click it.
- Read the agreement, if you agree, check the box and then click Next.
- If you want to choose what to install and where to install, mark the Custom box, if not choose Standard. Click Next.
- The installer will tell you where Mozilla Firefox will be installed. Click Next.
- When the installation is complete, click Finish