X-Firefox

X-Firefox is an official portable version of the popular Mozilla Firefox web browser aimed specifically at users who either don't want to clutter their computer's OS registry or have a need to run the software directly from external storage devices (even though it can also be run from the hard-drive). X-Firefox is offered by winPenPack, an interesting project that offers people some of the most well-renowned open-source software made portable.

Key Features:

• 100% of the functions found in the normal, installer version of Mozilla Firefox


• Latest engine (Gecko) and GUI


• Tabbed browsing, download manager, live bookmarking, private browsing, and more


• Support for add-ons


• Run directly from external sources like external hard-drives or USB flash drives

Technical Specifications:

• Price: FREE


• Publisher: winPenPack


• Runs on any compatible storage device


• Set up in "silent" mode for easy deployment


• Cannot run while a normal instance of Firefox is running on the computer

To conclude, X-Firefox is a very good option for users who love Firefox and either want to run on the go, directly from external sources, or simply do not want to deal with any registry changes on their OS. By employing the services of X-Firefox, users can be sure that they are running the latest versions of Firefox in portable form.