palemoon icon doubles

[carlo]

hi all,
i'm using former makulu core edition (xfce on debian testing) and till some updates ago everything was perfect, now it still is but for palemoon
if i rightclick on palemoon icon i haven't the option to keep it on the dock
if i start palemoon from plank icon it creates a second icon - as if i had none on the dock- and any new window i might open would add a blue dot under the second icon, and if i click on the docked icon it opens a brand new window

 $ plank --version
0.11.89

 $ plank -d
[DEBUG 09:34:33.908929] [GLib] unsetenv() is not thread-safe and should not be used after threads are created
[INFO 09:34:33.909524] [AbstractMain:229] Plank version: 0.11.89
[INFO 09:34:33.909559] [AbstractMain:230] Kernel version: 5.7.0-1-amd64
[INFO 09:34:33.909588] [AbstractMain:231] GLib version: 2.64.4 (2.60.6)
[INFO 09:34:33.909616] [AbstractMain:234] GTK+ version: 3.24.20 (3.24.10)
[INFO 09:34:33.909643] [AbstractMain:237] Wnck version: 3.32.0
[INFO 09:34:33.909677] [AbstractMain:238] Cairo version: 1.16.0
[INFO 09:34:33.909708] [AbstractMain:239] Pango version: 1.44.7
[INFO 09:34:33.909735] [AbstractMain:240] + Cairo/Gtk+ HiDPI support enabled
[INFO 09:34:33.909762] [AbstractMain:242] + Dynamic Quicklists support enabled
[INFO 09:34:33.909788] [AbstractMain:245] + XInput Barriers support enabled
[DEBUG 09:34:33.916281] [GLib-GIO] _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ‘gio-vfs’
[INFO 09:34:34.003373] [WindowControl:68] Window-manager: Xfwm4
[DEBUG 09:34:34.043667] [DockletManager:204] Loading module '/usr/lib/x86_64-linux-gnu/plank/docklets/libdocklet-applications.so'
[INFO 09:34:34.043852] [DockletManager:107] Docklet 'applications' registered
[DEBUG 09:34:34.045308] [DockletManager:204] Loading module '/usr/lib/x86_64-linux-gnu/plank/docklets/libdocklet-battery.so'
[INFO 09:34:34.045473] [DockletManager:107] Docklet 'battery' registered
[DEBUG 09:34:34.046866] [DockletManager:204] Loading module '/usr/lib/x86_64-linux-gnu/plank/docklets/libdocklet-clippy.so'
[INFO 09:34:34.047026] [DockletManager:107] Docklet 'clippy' registered
[DEBUG 09:34:34.048499] [DockletManager:204] Loading module '/usr/lib/x86_64-linux-gnu/plank/docklets/libdocklet-clock.so'
[INFO 09:34:34.048659] [DockletManager:107] Docklet 'clock' registered
[DEBUG 09:34:34.050032] [DockletManager:204] Loading module '/usr/lib/x86_64-linux-gnu/plank/docklets/libdocklet-cpumonitor.so'
[INFO 09:34:34.050191] [DockletManager:107] Docklet 'cpumonitor' registered
[DEBUG 09:34:34.051485] [DockletManager:204] Loading module '/usr/lib/x86_64-linux-gnu/plank/docklets/libdocklet-desktop.so'
[INFO 09:34:34.051642] [DockletManager:107] Docklet 'desktop' registered
[DEBUG 09:34:34.053087] [DockletManager:204] Loading module '/usr/lib/x86_64-linux-gnu/plank/docklets/libdocklet-trash.so'
[INFO 09:34:34.053245] [DockletManager:107] Docklet 'trash' registered
[DEBUG 09:34:34.053389] [GLib] setenv()/putenv() are not thread-safe and should not be used after threads are created
[DEBUG 09:34:34.077117] [GLib-GIO] _g_io_module_get_default: Found default implementation dconf (DConfSettingsBackend) for ‘gsettings-backend’
[INFO 09:34:34.077355] [AbstractMain:299] Running with 1 docks ('dock1')
[DEBUG 09:34:34.077456] [DockController:80] Create dock 'dock1' (config_folder = /home/carlo/.config/plank/dock1)
[DEBUG 09:34:34.077519] [GLib] setenv()/putenv() are not thread-safe and should not be used after threads are created
[DEBUG 09:34:34.077696] [Settings:53] Bind 'PlankDockPreferences' to '/net/launchpad/plank/docks/dock1/'
[WARN 09:34:34.219874] [Preferences:192] '/usr/share/plank/themes/Transparent/dock.theme' is read-only!
[DEBUG 09:34:34.219953] [Preferences:349] Loading preferences from file '/usr/share/plank/themes/Transparent/dock.theme'
[WARN 09:34:34.226554] [Preferences:378] Missing key 'OuterStrokeColor' for group 'PlankTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226594] [Preferences:378] Missing key 'FillStartColor' for group 'PlankTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226630] [Preferences:378] Missing key 'FillEndColor' for group 'PlankTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226664] [Preferences:378] Missing key 'InnerStrokeColor' for group 'PlankTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226694] [Preferences:378] Missing key 'HorizPadding' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226746] [Preferences:378] Missing key 'ItemPadding' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226775] [Preferences:378] Missing key 'IndicatorSize' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226803] [Preferences:378] Missing key 'IconShadowSize' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226853] [Preferences:378] Missing key 'UrgentBounceHeight' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226910] [Preferences:378] Missing key 'LaunchBounceHeight' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226945] [Preferences:378] Missing key 'FadeOpacity' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.226974] [Preferences:378] Missing key 'ClickTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227000] [Preferences:378] Missing key 'UrgentBounceTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227027] [Preferences:378] Missing key 'LaunchBounceTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227052] [Preferences:378] Missing key 'ActiveTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227077] [Preferences:378] Missing key 'SlideTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227101] [Preferences:378] Missing key 'FadeTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227125] [Preferences:378] Missing key 'HideTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227151] [Preferences:378] Missing key 'GlowSize' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227176] [Preferences:378] Missing key 'GlowTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227200] [Preferences:378] Missing key 'GlowPulseTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227225] [Preferences:378] Missing key 'UrgentHueShift' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227248] [Preferences:378] Missing key 'ItemMoveTime' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227273] [Preferences:378] Missing key 'CascadeHide' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[WARN 09:34:34.227298] [Preferences:378] Missing key 'BadgeColor' for group 'PlankDockTheme' in preferences file '/usr/share/plank/themes/Transparent/dock.theme' - using default value
[DEBUG 09:34:34.228250] [ItemFactory:176] Loading dock elements from '/home/carlo/.config/plank/dock1/launchers'
[DEBUG 09:34:34.240761] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/gnome-system-monitor.dockitem'
[DEBUG 09:34:34.241980] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/webapps.dockitem'
[DEBUG 09:34:34.243117] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/Software.dockitem'
[DEBUG 09:34:34.260227] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/org.kde.dolphin.dockitem'
[DEBUG 09:34:34.265607] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/waterfox.dockitem'
[DEBUG 09:34:34.268506] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/google-earth-pro.dockitem'
[DEBUG 09:34:34.271307] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/qalculate-gtk.dockitem'
[DEBUG 09:34:34.283371] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/cpumonitor.dockitem'
[WARN 09:34:34.302309] [Preferences:192] '/home/carlo/.config/plank/dock1/launchers/onboard.dockitem' is read-only!
[DEBUG 09:34:34.302474] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/onboard.dockitem'
[DEBUG 09:34:34.309415] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/clock.dockitem'
[DEBUG 09:34:34.320424] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/palemoon.dockitem'
[DEBUG 09:34:34.329265] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/opera.dockitem'
[DEBUG 09:34:34.352143] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/xfce-settings-manager.dockitem'
[DEBUG 09:34:34.359315] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/minitube.dockitem'
[DEBUG 09:34:34.368441] [Preferences:349] Loading preferences from file '/home/carlo/.config/plank/dock1/launchers/xfce4-terminal.dockitem'
[DEBUG 09:34:34.467932] [Unity:164] Initializing LauncherEntry support
[INFO 09:34:34.468241] [HideManager:616] Barriers enabled (XInput 2.3 support)
[DEBUG 09:34:34.468311] [PositionManager:675] Without draw_values there is trouble ahead
[DEBUG 09:34:34.476609] [Unity:133] com.canonical.Unity acquired
[WARN 09:34:34.590361] Creating surface took WAY TOO LONG (111ms), enabled downscaling for this cache!
[WARN 09:34:34.769835] Creating surface took WAY TOO LONG (33ms), enabled downscaling for this cache!
[INFO 09:34:34.819083] [DockRenderer:481] Cairo.SurfaceType: XLIB
[WARN 09:34:37.838996] Creating surface took WAY TOO LONG (35ms), enabled downscaling for this cache!
[DEBUG 09:34:46.788106] [GLib] posix_spawn avoided (automatic reaping requested) (fd close requested)

[Eduard Bürki (eizeila)]

See here: https://answers.launchpad.net/plank/+question/253704

[carlo (assolutooccidentale)]

well
i've tried all of the solutions listed there, but the only one which works is the dummy one
buuut
of course i simply have the icon on plank, if i open palemoon a second icon appears with the blue dot(s) at the right of the bar...