I need to set a SageMath environment variable in .bashrc to use the Unsafe Browser to connect to localhost:8080 and use Sage's notebook interface (as far as I can tell, the Tor Browser can't view localhost).
The Sage example of setting the default browser as Firefox is to add export SAGE_BROWSER="firefox" to .bashrc
Trying
export SAGE_BROWSER="unsafe browser"
fails with a message that unsafe can't be found.
What should be in the " " to call the Unsafe Browser?