Firefox has officially released version 18.104.22.168 which can be downloaded from the getfirefox.com site. If you want to download Portable Firefox 22.214.171.124 then just read through the simple instructions and you will be using it in no time.
For those people who want Portable Firefox it is simple. All you have to do is download the Portable Firefox 126.96.36.199 file below. Then you unzip the file and browse for the file PortableFirefox.exe. Just execute that file and you will be running Firefox 188.8.131.52! The profile is kept with the PortableFirefox folder so you don’t have to worry about messing up your other profile and the uninstallation process is simple…just delete the folder! Don’t forget to stick it on your USB drive and carry it with you wherever you go.