[tbb-bugs] #29634 [Applications/Tor Browser]: Riot.im local storage lost when closing tab

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#29634: Riot.im local storage lost when closing tab
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 Reporter:  0tzVNmkQxgql                 |          Owner:  tbb-team
     Type:  defect                       |         Status:
                                         |  needs_information
 Priority:  Medium                       |      Milestone:
Component:  Applications/Tor Browser     |        Version:
 Severity:  Normal                       |     Resolution:
 Keywords:  riot, matrix, local storage  |  Actual Points:
Parent ID:                               |         Points:
 Reviewer:                               |        Sponsor:
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Comment (by gk):

 Replying to [comment:4 0tzVNmkQxgql]:
 > I did some more testing. The culprit is this: Options -> Cookies and
 Site Data: Check "Keep until I close Tor Browser" (on all versions,
 included the latest).
 > If I set this instead of "Keep until they expire", even opening
 riot.im/app in another tab while leaving the existing one open does not
 retain the session. At the same time, this setting does not actually
 delete any cookies when the browser closes either.
 > IMO, correct behaviour would be session persistence while the browser is
 open and removal of all site data when it is closed. This is the
 (perceived) behaviour with vanilla settings, in private browsing mode.

 Thanks for tracking this down. So, to be sure I understood you correctly:
 that option is buggy once you leave permanent Private Browsing Mode (PBM)
 (because I don't seem to be able to enable it within PBM)?

 > Also, adding riot.im as an "Allow" exception is of course superfluous,
 if cookies are accepted in general.
 >
 > I misinterpreted the settings; my goal was that Tor Browser cleans up
 all history, except for riot.im data, but I don't think that's possible
 right now. Optimally, Tor Browser should run in private browsing mode with
 vanilla settings, but allow whitelisting of sites to keep data across
 browser restarts, but that would be its own feature request.

 Yes, I think you are right about that. I suppose your proposed features
 does not work in vanilla Firefox either right now?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29634#comment:5>
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