It will create a "Firefox" directory and all the requisite directories underneath.
To install Mozilla Firefox Portable, download and extract it to your USB drive's root directory. Search: Mozilla Firefox 52 Esr 32 Bit Download Portable. It has some specially-selected optimizations to make it perform. Mozilla Foundation Firefox Web browser Add-on, Icon Mozilla Firefox Free. It will also work from a CDRW drive (in packet mode), ZIP drives, external hard drives, MP3 players, flash RAM cards, etc. Portable Firefox is a fully functional package of Firefox optimized for use on a USB key drive. Firefox Portable Web browser Add-on Adobe Flash Player, Firefox logo, globe.
It has some specially-selected optimizations to make it perform faster and extend the life of your USB key and a specialized launcher that will allow most of your favorite extensions to work as you switch computers. Then, to use Firefox on your drive, launch it with the executable in the Firefox directory. It will create a 'Firefox' directory and all the requisite directories underneath. Mozilla Firefox Portable is the PortableApps version of Mozilla Firefox, so you can take your Firefox anywhere you go preserving all your settings, add-ons, and more. To install Mozilla Firefox Portable, download and extract it to your USB drive's root directory.