[tbb-bugs] #17252 [Applications/Tor Browser]: Confirm TLS session resumption/ID are isolated to the URL bar domain, and re-enable them

[Tor Bug Tracker & Wiki]

#17252: Confirm TLS session resumption/ID are isolated to the URL bar domain, and
re-enable them
-------------------------------------------------+-------------------------
 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  enhancement                          |         Status:  new
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-linkability, ff52-esr,           |  Actual Points:
  TorBrowserTeam201711, tbb-performance          |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by arthuredelstein):

 I just noticed that the pref "security.enable_tls_session_tickets" was
 removed from Firefox in 2013:
 https://bugzilla.mozilla.org/show_bug.cgi?id=917049. So we can definitely
 remove that pref from `browser/app/profile/000-tor-browser.js`.

 Fortunately, the pref we uplifted in 2014,
 "security.ssl.disable_session_identifiers" is still present in Firefox,
 and is [https://bugzilla.mozilla.org/show_bug.cgi?id=967977 designed to
 disable both session IDs and session tickets]. The question remains
 whether we should remove this pref as well.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17252#comment:5>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online