[tbb-bugs] #21905 [Applications/Tor Browser]: Allow third-party cookies as we are isolating them to the first party in ESR52

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#21905: Allow third-party cookies as we are isolating them to the first party in
ESR52
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 Reporter:  gk                               |          Owner:  tbb-team
     Type:  enhancement                      |         Status:  new
 Priority:  Medium                           |      Milestone:
Component:  Applications/Tor Browser         |        Version:
 Severity:  Normal                           |     Resolution:
 Keywords:  tbb-usability-website, ff52-esr  |  Actual Points:
Parent ID:                                   |         Points:
 Reviewer:                                   |        Sponsor:
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Changes (by gk):

 * cc: pastly (added)


Comment:

 pastly mentioned on IRC that Tor Browser does not protect against
 https://robinlinus.github.io/socialmedia-leak/ if we allow third-party
 cookies. But I think it should if third-party cookies are really the means
 to track users across origins. We need to investigate that more thoroughly
 before flipping the switch.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21905#comment:5>
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