[tbb-bugs] #22091 [Applications/Tor Browser]: Use the new Firefox feature "Containers" (was: Use the new Firefox feature "Contextual Identities")

Tor Bug Tracker & Wiki blackhole at torproject.org
Fri Apr 28 15:20:56 UTC 2017

#22091: Use the new Firefox feature "Containers"
 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 tom):

 I'm editing the title to change it to Containers: Contextual Identity is
 kind of a catch-all term for OriginAttributes and how that can be exposed,
 such as through Containers... or First Party Isolation.

 I think this bug is invalid. TBB already uses FPI, which is enabled
 through OriginAttributes and can be throught of strong-containers: one
 container per top level domain.

 Using containers would actually _weaken_ Tor Browser. I can imagine there
 are some cases where one wants different first party domains to share
 state in Tor Browser, but creating such a feature would be:
 1. Weakening the security model
 2. Extremely difficult to explain or design UX for

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22091#comment:1>
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