After slew of beta releases, Firefox 3.5 final version was released few days ago. Besides the usual performance improvement and bug fixes, it comes loaded with lot of features. It introduces support for HTML5 video tags, a first for web browsers. HTML5 allows user to view video and audio content without any need for separate plugin (For example, no need to install Flash to play online videos).
Now you can relish all these feature in portable mode. Firefox 3.5 is available in portable form at Portable Apps website. Download portable Firefox 3.5 and carry bookmarks, extensions and passwords with you in a USB drive! [6 websites to download portable USB applications]