Just a day after FireFox 3.5.2 was released to the public, here comes the portable version from PortableApps.com. Portable Firefox is a modified version of the popular web browser that is extremely useful for those who are constantly on the move or work with multiple computers. You can carry this version around in your USB Flash drive (or any other storage medium) along with your saved passwords, extensions, bookmarks and other personal settings. And if the machine at your workplace/university/school has restricted installing new applications, you no longer have to rely on crappy IE – Portable Firefox does not need to be installed.

Portable Firefox

Developer Description

Mozilla Firefox Portable Edition is a fully functional package of Firefox optimized for use on a USB key drive. It has some specially-selected optimizations to make it perform faster and extend the life of your USB key as well as a specialized launcher that will allow most of your favorite extensions to work as you switch computers. It will also work from a CDRW drive (in packet mode), ZIP drives, external hard drives, some MP3 players, flash RAM cards and more.


[Click Here] to download Portable Firefox 3.5.2 from SourceForge (Direct Download)


  1. Mike // 8/09/2009 11:50:00 AM  

    I downloaded one of previous version of portable firefox from portableaps but after some time, my antivirus found trojan in it. So I don't trust that site's products, if firefox main site make some portable it will be nice.

  2. TEAM FILEnetworks // 8/09/2009 12:41:00 PM  

    Been using PortableApps.com software for several years now and never hard problems with it. If the problem was detected after some time, maybe your firefox got infected after you started using it.