1576019 - Main window resizes on restart when the titlebar is hidden

Status: RESOLVED WORKSFORME

(Thunderbird :: Mail Window Front End, defect)

Description

[Michel]

The main window resizes (shrinks) on restart when the titlebar is hidden.
On each restart the window is a few pixels smaller than before.
This is on Linux, both i686 and x86_64.
I've seen something like this on Windows too, there the window grows.

Comment 1

[Matt]

I thought Thunderbird drew it's tabs in the title bar after V17. Is this another of those Linux vagarities?

Comment 2

[Wayne Mery (:wsmwk)]

Michel, do you still see this when using newer version?

Comment 3

[Michel]

Yes, it still happens, on each restart the window shrinks by 4px in each direction.
Set your start page to https://browsersize.com/ and you'll see it.
I've tested it now with 68.5.0 and 73.0b2 on Linux, usually I don't see it since I've set a minimum size in userChrome.css.

Comment 4

[WaltS48 [:walts48]]

Not seeing any problem using 68.5.0 on Ubuntu 18.04.3 LTS.

Window remains the same size according to browsersize.com as the start page.

Comment 5

[Wayne Mery (:wsmwk)]

Does this still reproduce?

Comment 6

[Michel]

Yes, it still reproduces, but only on Slackware 14.2, not on KDE neon, a Ubuntu based distribution.
Possibly GTK+ related, Slackware 14.2 uses GTK+ 3.18, KDE neon 5.22 uses GTK+ 3.24.

Comment 7

[Wayne Mery (:wsmwk)]

Michel,
Does this reproduce with a newer version? 115?

Comment 8

[Michel]

No, but I don't have Slackware 14.2 any more.
I can't reproduce it on KDE neon 5.27 or Salix Xfce 15.0.
I guess it was a problem with Slackware 14.2.

Comment 9

[Wayne Mery (:wsmwk)]

Thanks for the update.