Trac issueshttps://gitlab.torproject.org/legacy/trac/-/issues2020-06-15T23:21:49Zhttps://gitlab.torproject.org/legacy/trac/-/issues/13586Use security.ssl.disable_session_identifiers pref in meek-http-helper to rest...2020-06-15T23:21:49ZDavid Fifielddcf@torproject.orgUse security.ssl.disable_session_identifiers pref in meek-http-helper to restore TLS session ticketscomment:1:ticket:13442 shows that meek-http-helper in Tor Browser 4.0 doesn't match stock Firefox because it is missing the TLS session ticket extension. It's because of #10822 (and upstream Mozilla [#917049](https://bugzilla.mozilla.org...comment:1:ticket:13442 shows that meek-http-helper in Tor Browser 4.0 doesn't match stock Firefox because it is missing the TLS session ticket extension. It's because of #10822 (and upstream Mozilla [#917049](https://bugzilla.mozilla.org/show_bug.cgi?id=917049) and [#967977](https://bugzilla.mozilla.org/show_bug.cgi?id=967977)) which replaced one pref with another.
I've tested manually that setting `security.ssl.disable_session_identifiers=false` restores the missing extension. A test build with this patch has just started, but it's straightforward enough that I'll attach it now.