I am having this odd problem.
I like to configure all my portable apps on my harddrive for the speed, then just drag and drop the files onto the thumb drive.
At first I thought I had done something wrong, but every time I install addons and move it, I start up firefox the first time and it won't start up at all. The proccess is running, but no even the splash screen shows up.
And then I close that, pull the drive out and plug it back in, and it starts up fine, but all the addons are gone.
Anyone having this problem?