Almost all releases of Ubuntu comes with a pre-installed Mozilla Firefox. If we live boot from USB with Ubuntu, we will find Firefox at our use, but if we installed some other browser, for example Chromium, Google Chrome,or Opera, we will find them missing in the next live boot session, for obvious reasons.
Is there some way that I can keep an extra (not pre-provided/pre-installed) software (like those extra browsers) in the USB, so I will find them in every live boot session henceforth?
I would like to clear it up that, I don't wish to install Ubuntu in the USB, just want to find an extra software in live boot session.