Re: [tor-bugs] #22642 [Applications/Tor Browser]: TorBrowser 7.x Mac - Disable kMDItemWhereFroms extended attributes at least in Private Browsing Mode

[Tor Bug Tracker & Wiki]

#22642: TorBrowser 7.x Mac - Disable kMDItemWhereFroms extended attributes at 
least
in Private Browsing Mode
--+--
 Reporter:  cypherpunks   |  Owner:  tbb-team
 Type:  defect| Status:  new
 Priority:  Medium|  Milestone:
Component:  Applications/Tor Browser  |Version:
 Severity:  Normal| Resolution:
 Keywords:  tbb-disk-leak |  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--
Changes (by gk):

 * cc: DrMikeTwiddle (added)
 * keywords:   => tbb-disk-leak


Comment:

 #22904 is a duplicate.

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Re: [tor-bugs] #22642 [Applications/Tor Browser]: TorBrowser 7.x Mac - Disable kMDItemWhereFroms extended attributes at least in Private Browsing Mode

[Tor Bug Tracker & Wiki]

#22642: TorBrowser 7.x Mac - Disable kMDItemWhereFroms extended attributes at 
least
in Private Browsing Mode
--+--
 Reporter:  cypherpunks   |  Owner:  tbb-team
 Type:  defect| Status:  new
 Priority:  Medium|  Milestone:
Component:  Applications/Tor Browser  |Version:
 Severity:  Normal| Resolution:
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--

Comment (by cypherpunks):

 Here is the mozilla bugzilla bug I created.
 https://bugzilla.mozilla.org/show_bug.cgi?id=1374027

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[tor-bugs] #22642 [Applications/Tor Browser]: TorBrowser 7.x Mac - Disable kMDItemWhereFroms extended attributes at least in Private Browsing Mode

[Tor Bug Tracker & Wiki]

#22642: TorBrowser 7.x Mac - Disable kMDItemWhereFroms extended attributes at 
least
in Private Browsing Mode
--+--
 Reporter:  cypherpunks   |  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:|
--+--
 In late 2016, Mozilla developers implemented kMDItemWhereFroms extended
 attribute metadata on macOS to behave more like Safari (however Safari,
 rather surprisingly for Apple, doesn't write xattrs in private browsing).

 When files are downloaded, Firefox (v51+) writes the URL of downloaded
 files to a kMDItemWhereFroms entry in the file's extended attribute, even
 in Private Browsing mode. This metadata can be viewed using "xattr -l
 " and removed using "xattr -rc ", but on later versions of
 10.12 this metadata is usually also written to
 ~Library/Preferences/com.apple.LaunchServices.QuarantineEventsV2


 I plan to file a bug on bugzilla and ask the devs who implemented it
 whether they could add an about:config pref or disable the functionality
 in private browsing, but in case they don't respond, I thought I'd file a
 ticket here too since TorBrowser is now on v52ESR.

 Here's the bugzilla bug where the developers originally implemented the
 kMDItemWhereFroms functionality.

 https://bugzilla.mozilla.org/show_bug.cgi?id=337051

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