Not sure if above use the same way but I use firefox portable:
Mozilla Firefox, Portable Edition Legacy 78 (customizable web browser) | PortableApps.com
After that, use this method to disarm the timebomb that falh added:
Topic: Guide for using Flash Player in 2023 @ AskWoody
Portable also to put usb to play in school, library for poor kids that do not have computer at home.