EDIT: Sorry, posted too soon the first time.
Recently tested 3 Methods in documentation:
A. application proxy settings (foxy proxy):
tor browser: working
(using Preferences menu does not work)
iceweasel: working
B. proxifier (proxychains):
tor browser: not working (as stated)
iceweasel: working
C. transparent proxy (redsocks):
tor browser: working
iceweasel: working
This is new info to me. Thanks for updated docs!
@lammy I just added TOR_TRANSPROXY=1 to /etc/environment. Reboot.
EDIT2: /etc/environment method works best when using a dedicated workstation for proxy exits.
If running multiple browsers, either the command line method or editing the startup script is more appropriate.
EDIT3: Gah, since Foxy Proxy doesn’t support chaining of proxies, there’s still no way to exit from a proxy server using Tor Browser with TransPort disabled. Need proxychains to work for that.