1300702 - Reload page after toggle privacy.firstparty.isolate pref

Status: RESOLVED WONTFIX

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

Description

[Yoshi Cheng-Hao Huang [:allstars.chh][:allstarschh][:yoshi]]

The firstPartyDomain is calculated in the top-level document and propagate to the sub-docshells, which means if we turn on/off the pref, the already opened webpages still use the same data-jar. This somehow may confuse users, as they will think the opened webpages will use a different data-jar after toggling the pref.

But reloading immediately could possibly interrupt some user flow of web pages. For example, I am writing some form in other tab, and turn on the pref in another tag.

So we need a good UI to tell user about this

Comment 1

[Ethan Tseng [:ethan]]

Do we have the similar issue in Containers?
What's the behavior of Containers while turning on/off the preference?

Comment 2

[Jonathan Hao (inactive) [:jhao]]

I tried Tor browser.  If I switch the preference "privacy.thirdparty.isolate", the existing tabs still use the data-jar without double-keys.  There was no reloads or UI, so I think we don't have to do this for Tor uplift.  But we can still do this if we think this is a serious problem.

Comment 3

[Yoshi Cheng-Hao Huang [:allstars.chh][:allstarschh][:yoshi]]

Tor doesn't support this either.