1657442 - Disable storage compatibility heuristics to third party cookie blocking in Nightly

Status: RESOLVED FIXED

(Core :: Privacy: Anti-Tracking, task)

Description

[Tanvi Vyas[:tanvi]]

In bug 1625568, we added the pref network.cookie.rejectForeignWithExceptions.enabled to apply the heuristics and Storage Access API that we use for blocking tracking cookies to blocking all third party cookies.

We added this pref to see if that helps the compatibility of the block all third party cookies setting. We plan to test this in a study in the future.

In the meantime, we had enabled network.cookie.rejectForeignWithExceptions.enabled in Nightly. Since this setting makes the third party cookie blocking more permissive, we should disable it by default in Nightly. One of the reasons we originally enabled it was to make sure the code didn't cause unintended bugs before we turn it on in an experiment. Sometime has passed since then, so if there were any big issues, we would have hopefully detected them by now.

baku, can you take this bug to flip this pref to false by default in Nightly?
https://searchfox.org/mozilla-central/rev/b4f3ce16c5099cf068fb023341959a0457adec9e/modules/libpref/init/StaticPrefList.yaml#7781

Comment 1

[Tim Huang[:timhuang]]

Attachment: Bug 1657442 - Flip the pref 'network.cookie.rejectForeignWithExceptions.enabled' to false. r?dimi

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/44c8f77ab82b
Flip the pref 'network.cookie.rejectForeignWithExceptions.enabled' to false. r=dimi

Comment 3

[Cristina Coroiu [:ccoroiu]]

https://hg.mozilla.org/mozilla-central/rev/44c8f77ab82b