[tor-dev] Creating custom Tor Browser settings profile

[procmem]

Hi I was wondering if Tor Broswer supports environment variables to
customize about:config settings.

The idea is to ship an explicitly labelled, custom profile one day to
allow users seamless access to localhost daemons (like zeronet) by
changing network.proxy.no_proxies_on to 0 - so they don't have to jump
thru hoops or install foreign code like foxyproxy. At the same time, a
separate browser profile affords regular users protection by keeping
these fingerprinatble, non default settings contained and only used when
the user needs them.

Any way to do this?