The LibreWolf browser does not appear in a full window on startup

pre-requisites

  • I've read and followed the contribution guidelines;
  • I've reproduced the issue in a new LibreWolf profile;
  • I've checked that the problem is not present in a stock Firefox profile;

details

  • browser version & OS:
  • steps to reprouce:
  • expected result:
  • actual result:
  • console errors and warnings:
  • others:

The LibreWolf browser does not appear in a full window on startup. Is there a way to fill the screen? What is the reason for not displaying it by default?

Could there be a security risk with the requested setting?

Enable ResistFingerprinting | Disabled privacy.resistFingerprinting | false

My system

inxi -Sxzzz
System:
  Kernel: 5.19.0-7.1-liquorix-amd64 x86_64 bits: 64 compiler: gcc v: 10.2.1 
  Desktop: Cinnamon 4.8.6 Distro: Debian GNU/Linux 11 (bullseye)

Browser version

LANG=C dpkg -l librewolf
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
ii  librewolf      104.0-1      all          The Librewolf Browser

Console errors and warnings

/usr/share/librewolf/librewolf

(librewolf-default:92463): Gtk-WARNING **: 23:39:43.962: Theme parsing error: gtk.css:7996:1: '/*' in comment block

(librewolf-default:92463): Gtk-WARNING **: 21:39:44.309: Theme parsing error: gtk.css:4700:28: The style property GtkRange:slider-width is deprecated and shouldn't be used anymore. It will be removed in a future version

[...]

(librewolf-default:92463): Gtk-WARNING **: 21:39:44.613: Theme parsing error: gtk.css:4702:29: The style property GtkRange:trough-border is deprecated and shouldn't be used anymore. It will be removed in a future version

(librewolf-default:92463): Gtk-WARNING **: 21:39:44.621: Theme parsing error: gtk.css:7996:1: '/*' in comment block
JavaScript error: resource://gre/modules/XULStore.jsm, line 62: Error: Can't find profile directory.
Missing chrome or resource URL: resource://gre/modules/UpdateListener.sys.mjs
console.error: BroadcastService: 
  receivedBroadcastMessage: handler for
  remote-settings/monitor_changes
  threw error:
  Message: Error: Polling for changes failed: The URI is malformed..
  Stack:
    remoteSettingsFunction/remoteSettings.pollChanges@resource://services-settings/remote-settings.js:334:13

... after closed:

Missing chrome or resource URL: resource://gre/modules/UpdateListener.sys.mjs
console.error: "Error during quit-application-granted: [Exception... \"File error: Not found\"  nsresult: \"0x80520012 (NS_ERROR_FILE_NOT_FOUND)\"  location: \"JS frame :: resource:///modules/BrowserGlue.jsm :: _onQuitApplicationGranted/tasks< :: line 2012\"  data: no]"
JavaScript error: resource://gre/modules/PageThumbs.jsm, line 722: AbortError: IOUtils.profileBeforeChange getter: IOUtils: profileBeforeChange phase has already finished

I read the FAQ, and opened a new profile, and LibreWolf does not use Firefox settings.

Edited by kimariterikishi