1851274 - About Nightly dialog is automatically maximized (i.e. full-screen), much bigger than expected

Status: RESOLVED DUPLICATE of bug 1851127

(Core :: Widget: Gtk, defect)

Description

[Daniel Holbert [:dholbert]]

Attachment: screenshot

On my Microsoft Surface 3 (the only machine I've got handy at the moment), running Ubuntu 22.04, my Help|About Nightly dialogs are auto-maximized right now. See attached screenshot. This makes them look a bit silly & way bigger than expected.

This is in a configuration where my Firefox windows are also auto-maximized, FWIW (I'm not entirely sure why).

STR on this machine:

1. Start Nightly with a fresh profile
2. Help|About Nightly

EXPECTED RESULTS:
Smallish dialog, same size as always

ACTUAL RESULTS:
Giant dialog. It's maximized by default.I can un-maximize it and then it's the size I expect.

This was a recent regression. Regression range:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=04436061c3f18010405d6a2c7295e223bd2ec3a0&tochange=79fd00522da11013e2076ceccfd842c54d2f0822

--> Regression from bug 1849162

Comment 1

[Daniel Holbert [:dholbert]]

Attachment: about:support raw data from fresh profile (affected by bug)

Here's the "copy raw data" output from about:support, in a fresh profile (where the bug reproduces)

Comment 2

[Daniel Holbert [:dholbert]]

emilio, could you take a look? This seems to have been a regression from a simplification patch that you landed recently (bug 1849162).

Not sure if this was a bug in that patch, vs. a latent issue with our about-nightly dialog that became exposed due to that patch.

Comment 3

[Daniel Holbert [:dholbert]]

I can reproduce this both under Wayland and under Xorg (choosing between those options at the Ubuntu login screen).

So: it's not specific to either display mode.

Comment 4

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

Set release status flags based on info from the regressing bug 1849162