SSh X Windows Kajigger
I do not know if this fits into the category I chose but I think it works.
I am logged into my computer through ssh. I want to open firefox remotely, but have it display on the host computer.
So I want to ssh into it with my phone and have the ability to open a firefox window which displays on the monitor, not my phone.
Turns out the solution is very simple:
1) The default display on server is named ":0"
2) therefore, the command is simply $firefox --display=:0