another option I just thought of is to get a browser as a portable app.
Get a flash drive and go to
https://portableapps.com/apps
pick a browser, I've used Sea-Monkey portable before
https://portableapps.com/apps/internet/seamonkey_portable
download the installation file, run it and tell it to install to the flash drive.
now there will be a folder on the flash drive called, for example, Sea-Monkey portable.
open that folder and click on the exe file (I think). the browser should now begin to load and you can add favorites or save pages, passwords, whatever, and it will all be saved on that flash drive folder.
Then you can take that flash drive to any other computer (I think it has to be running Windows) and that same browser experience will load, without installing anything to any of the computers, including the computer you started with.