[tor-bugs] #22932 [Applications/Tor Browser Sandbox]: Support a non-volatile profile directory.

[Tor Bug Tracker & Wiki]

#22932: Support a non-volatile profile directory.
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     Reporter:  yawning                           |      Owner:  yawning
         Type:  enhancement                       |     Status:  new
     Priority:  Medium                            |  Milestone:
    Component:  Applications/Tor Browser Sandbox  |    Version:
     Severity:  Normal                            |   Keywords:
Actual Points:                                    |  Parent ID:
       Points:                                    |   Reviewer:
      Sponsor:                                    |
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 Basic idea is to copy the profile directory into a new tmpfs mount inside
 the container on each launch so that even if firefox writes evil to it,
 said evil will be non-persistent.

 The drawback is that this applies to bookmarks and preferences, so it
 can't be the default behavior, but as an "improve security" option, it's
 easy to do.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22932>
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