1604921 - Maximizing Firefox does not fill the full screen in the vertical direction when using no titlebar

Status: RESOLVED INCOMPLETE

(Core :: Widget: Gtk, defect, P3)

Description

[stephen.ryan]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

I can reproduce by following these steps:

1. Unmaximize Firefox.
2. On the Customize screen, uncheck Titlebar.
3. Attempt to maximize.

Tried with extensions disabled and a new test profile.
Firefox 71.0 (64-bit) for Linux Mint mint - 1.0
Linux Mint 19.2 Cinnamnon

Actual results:

Firefox does not fill the screen in the vertical direction. There is empty space at the bottom of the screen. The height of the window is the same as the pre-maximized height. The only way to fill the full screen is to increase the height to fill the full screen before maximizing.

Expected results:

Maximized Firefox takes up the full screen.

Comment 1

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

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Comment 2

[Martin Stránský [:stransky] (ni? me)]

Can you please attach a screenshot if that?
Thanks.

Comment 3

[kgme]

Attachment: Screenshot from 2019-12-20 07-24-25.png

Comment 4

[kgme]

Attachment: Screenshot from 2019-12-20 07-24-04.png

This screenshot is unmaximized, showing a terminal window that is not visible when the browser is maximized. Just the desktop background (and desktop icons, but none on this screen).

Comment 5

[Kestrel]

Attachment: Maximized window lower portion not rendering

I also see this on a clean Linux Mint 19.2 Cinnamon live ISO with Firefox 71.

Comment 6

[Kestrel]

Regression appeared in 71 and was fixed in 73.

Regression range:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=386d29f3095d353557e2a6288d53af55e22cbddd&tochange=3258db2cb365a1cb73748c36ee023edc8848d0f1

Regressed by Bug 1550721.

Fix range:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=ce7978d35d019a06c1c0d1ef17f4323bb5609eef&tochange=55cfd94ac60de9c42dc69b51326601a9ff9e0bc6

Fixed by Bug 1573742.

Comment 7

[Vlad Rusu]

Attachment: Screenshot from 2020-04-13 19-26-43.png

Sorry, but this is NOT fixed.
Firefox 75, Linux Mint 19.3.
It appears maybe it's a bug of Linux Mint/Firefox combination?

Comment 8

[Vlad Rusu]

Additional info: "Something maximizing works correctly but half the time doesn't".
As another user said, when maximized it has exactly the size of the window before maximizing. The empty space is unusable.. ie: if there are icons there, you cannot click on them ... it's like there is a dead area.

Comment 9

[Vlad Rusu]

Wontfix?
Is there any reason you don't want to fix this?

Comment 10

[Julien Cristau [:jcristau]]

Firefox 75 already shipped so it's too late to fix this in that release.

Comment 11

[Emilio Cobos Álvarez (:emilio)]

(In reply to Vlad Rusu from comment #9)

Is there any reason you don't want to fix this?

Note that it's only wontfix for 75. A fix for trunk / other releases is still welcome.

Comment 12

[Kestrel]

I can reproduce it on Release 75+ with Linux Mint 19.3 but only intermittently (unlike before). The unrendered parts of the window are still interactive with the mouse cursor.
I cannot reproduce it at all on Nightly 73+, so there appears to be a configuration difference between Nightly and Release that is causing it.

Comment 13

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

Redirect a needinfo that is pending on an inactive user to the triage owner.
:stransky, since the bug has high priority, could you please find another way to get the information or close the bug as INCOMPLETE if it is not actionable?

For more information, please visit auto_nag documentation.