messenger.com works via browser ua switching but cannot log in so maybe thats easier fix if applicable

an idea came to my mind
minimal barebones most recent debian based chroot enviroment
i am thinking of cliking an icon on the homescreen that logs in to debian where the desktop is modefied for finger friendliness or simply precustomised desktop with large icons
chroot to debian because it offers more recent browser ,packages and librarys so we have better chances basicaly creating a firefox os like experience that can run web apps and provide more comapitablity with websites but with a twist as its debian we can use more native programs that can be minorly optimised for touch in addition its a sandboxed enviroment too.
is it possible to run multiple chroots?
also we can use a lot of programmes with the keyboard too.
is this doable sensibly or too much work ?
but please do explain briefly either way ,why?
as i am more intrested in that
thanks.