[tor-bugs] #4782 [Tor Browser]: Firefox gives confusing error message when TBB is run from a directory which it cannot write to

Tue Dec 27 07:45:38 UTC 2011

#4782: Firefox gives confusing error message when TBB is run from a directory
which it cannot write to
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    Reporter:  kikoulol     |       Owner:  mikeperry    
        Type:  defect       |      Status:  reopened     
    Priority:  normal       |   Milestone:               
   Component:  Tor Browser  |     Version:  Tor: 0.2.2.35
  Resolution:               |    Keywords:               
      Parent:               |      Points:               
Actualpoints:               |  
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Comment(by Shondoit):

 Replying to [comment:6 rransom]:
 > This check can be implemented either in Vidalia or in RelativeLink.c
 (compiled to “Start Tor Browser.exe”), and it may require marking the
 program which performs the check so that Windows won't ‘virtualize’ the
 filesystem (i.e. divert writes to a subdirectory of the user's AppData
 directory).
 The 'marking' needs to be done by the programs writing files. Since
 Firefox is already signed with a manifest file, it won't write to the
 VirtualStore (it's also why it gets a 'permission denied' for the lock).
 Tor itself is not signed and probably does have this problem when TBB is
 unpacked in restricted folder. (Same for Vidalia.)

 Recommendation: Sign tor.exe and Vidalia.exe as well as perform a
 'writable' check in RelativeLink.c.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4782#comment:8>
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