Portable Firefox is a fully functional solution of Firefox optimized for use on a USB key drive.

Here are some key features of "Portable Firefox":
?�?� One-Click Bookmarking
?�?� Improved Performance
?�?� Password Manager
?�?� Instant Web Site ID
?�?� Full Zoom
?�?� Smart Location Bar
?�?� Platform-Native Look & Feel

What's New in This Release:
?�?� This beta is now available in 54 languages - get your local version.
?�?� Added a new Private Browsing Mode.
?�?� Added functions to make it easy to clear recent history by time as well as remove all traces of a website.
?�?� New support for web worker threads.
?�?� The new TraceMonkey javascript engine is on by default for web content.
?�?� Improvements to the Gecko layout engine, including speculative parsing for faster content rendering.
?�?� Removed the new tab-switching behavior based on feedback from users
?�?� Support for new web technologies such as the and elements, the W3C Geolocation API, javascript query selectors, CSS 2.1 and 3 properties, SVG transforms and offline applications. More information.