[tor-bugs] #25773 [Applications/Tor Browser]: Disable Speculative Connect and Download

[Tor Bug Tracker & Wiki]

#25773: Disable Speculative Connect and Download
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     Reporter:  sysrqb                    |      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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 As a follow up to #25770, it turns out Tor Browser actually begins (and
 sometimes completes) the download before the user can confirm they
 actually want the-thing. This manifests in #7449 and #11254 as the file
 being downloaded in /tmp (on Unix, or similar on other platforms) and then
 it is moved into the correct directory.

 This provides an obvious performance improvement, especially for our use
 case. Unfortunately, this download begins before the user is even given
 the "where do you want this file saved" prompt, and I'm worried subtly
 downloading a file in the background is dangerous is some context,
 particularly some of our users.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25773>
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