1592260 - privacy.firstparty.isolate=true breaks store.ubi.com

Status: RESOLVED WORKSFORME

(Web Compatibility :: Site Reports, enhancement)

Description

[Artem S. Tashkinov]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0

Steps to reproduce:

It's really up to you what to do with this bug report but

privacy.firstparty.isolate=true makes it impossible to sign in at https://store.ubi.com

Since this option break Firefox so much, probably Firefox should be more vocal once it's enabled. I've spent three hours trying to understand why I can't login only to discover this undocumented option in my prefs.js which I presumed was harmless. Some website recommended using it, so I enabled it without thinking too much and everything seemingly worked.

It's not.

Comment 1

[Tom Ritter [:tjr]]

.

Comment 2

[Gary Chen [:xeonchen]]

https://store.ubi.com/ (FPD: ubi.com) uses https://connect.ubisoft.com/ (FPD: ubisoft.com) to log in.

Comment 3

[Steven Englehardt [:englehardt]]

This site now works under FPI and DFPI.