1284985 - cookies being loaded from about:newtab should use a privatebrowsing mode value >1 in the OriginAttributes instead of a temp userContextId

Status: NEW

(Core :: DOM: Security, defect, P3)

Description

[Andrea Marchesini [:baku]]

+++ This bug was initially created as a clone of Bug #1279568 +++

When we will have multiple private browsing sessions, we can use them instead using userContextId for the thumbnail generation in about:newtab.

Comment 1

[Ethan Tseng [:ethan]]

As offline discussion with Ehsan, this bug is blocked by bug 1271686.
And quote what Ehsan said: "enough of this stuff has already landed so whoever wants to work on this should be able to start immediately."

Comment 2

[(no longer active)]

Just to clarify what we mean here, my suggestion is to load about:newtab in private mode, always, not modify anything only on cookies.

Comment 3

[Tanvi Vyas[:tanvi]]

(In reply to :Ehsan Akhgari from comment #2)
> Just to clarify what we mean here, my suggestion is to load about:newtab in
> private mode, always, not modify anything only on cookies.

So about:newtab would be in a private mode that is designated for only top level about:newtab, and no other top level document loads.  Correct?  It would be a different private mode than the private mode used in Private Browsing Mode.

Comment 4

[Firefox Bug Husbandry Bot]

Bulk change per https://bugzilla.mozilla.org/show_bug.cgi?id=1401020