Portable Firefox and Thunderbird

RHLJay writes "-For the Road Warrior on the Go- If you have a laptop, desktop, and/or work PC keeping the information from Firefox and Thunderbird sync'd with each other is hard, not to mention the extensions. Not anymore - John Haller has packaged both Firefox and Thunderbird into 'Flash drive friendly' executables which can be run directly from a USB flash drive. Visit his site for more info. Portable Firefox and Portable Thunderbird."