1909450 - Opening a new window while using a private window overwrites your saved tabs.

Status: NEW

(Firefox :: Session Restore, defect, P3)

Description

[Fernando M. Muniz]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0

Steps to reproduce:

While only having a private window open, right-click on the taskbar Firefox icon, then click on "New window".

Actual results:

All tabs that were supposed to be there were overwritten by a single tab with the homepage.

Expected results:

Open a window with all previous tabs, then add a new tab with the homepage.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Firefox::Tabbed Browser' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Fernando M. Muniz]

Apparently this only happens if you do the following:
1- You open a normal window.
2- You open a private window.
3- You close the normal window.
4- You open a normal window.

Comment 3

[Dão Gottwald [:dao]]

This reminds me of bug 1896244, except that the actual and expected results seem inverse? Not sure what to make of this.

Comment 4

[Ada C.]

Hi, Fernando

I tried to reproduce this issue using Nighly 130.0a1 on macOS 13.6, but I was unsuccessful.

Could you please detail the STR or post a screen recording of the issue?
Does this issue happen with a new profile? Here is a link on how to create one: https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles

Comment 5

[Fernando M. Muniz]

Attachment: Issue

Here's the glitch being executed.

Comment 6

[Sam Foster [:sfoster] (he/him)]

There is some ambiguity around when the session ends and when it should be restored in these STR. I think we should explore using the moment in which the last non-private window is a closed as signifying the end of that session, so that the next non-private window being opened is when we evaluate restoring the session.

Comment 7

[Fernando M. Muniz]

I haven't tested this same thing with the History/Bookmarks/Downloads window, so I don't know if this same issue can happen there.