[tbb-bugs] #23855 [Applications/Tor Browser]: add system URL scheme to open in Tor Browser

[Tor Bug Tracker & Wiki]

#23855: add system URL scheme to open in Tor Browser
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     Reporter:  mcs                       |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
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 There is at least one scenario where it would be useful for other
 applications to be able to open an URL in Tor Browser. Facebook has
 special handling for .onion URLs and already prompts users who click on
 such a link that it is a Tor link and and may not work (if they are not
 connected to Facebook via the Facebook .onion and they are not coming from
 a known Tor exit node). If we changed Tor Browser to register a custom URL
 scheme such as torbrowser:, then Facebook and others could offer to open
 the .onion URL in Tor Browser.

 If we do this, it would involve registering an URL scheme with the OS
 (which would allow other applications to detect that Tor Browser is
 installed).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23855>
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