TOR creates 5 circuits initially. Does the TOR browser do the same?

1 Answer 1


Tor Browser launches it's own copy of tor.

The tor that it launches doesn't differ from any other instance of tor, except by configuration differences defined in torrc and torrc-defaults.

Anything that tor does, the tor launched by Tor Browser will also do.

tor opportunistically opens a number circuits, Tor Browser's tor does too.

  • But the browser creates a new circuit for each unique domain while TOR's number of circuits does not exceed 5. So the browser does have it's own functionality to. May 1, 2017 at 21:27
  • If more are needed, they're created.
    – cacahuatl
    May 1, 2017 at 21:34
  • But the browser creates a circuit for each new domain. TOR specifically doesn't do that - It will only do that if the current circuits can't serve a certain request. May 1, 2017 at 22:03
  • 1
    Tor doesn't do it by default. Tor can do it: Tor Browser's Tor Does Not Differ From Any Other Instance Of Tor. See this answer for an explaination of how Tor Browser's circuit isolation works.
    – cacahuatl
    May 2, 2017 at 0:04

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