Vielen Dank für die freundlichen Hinweise, klapp leider noch nicht. Unten verschiedene Aufrufe per Terminal, nach Neustart
Die (meine) Updateroutine hatte ich vor einigen Jahren mal so übernommen und hat so prima funktioniert
Firefox hat funktioniert
firefox
2025/07/15 18:10:04.817320 system_key.go:132: cannot determine nfs usage in generateSystemKey: cannot parse /etc/fstab: expected at least 3 fields, found 2
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/local/share/doc /usr/local/share/doc none bind,ro 0 0): cannot open directory "/usr/local/share": permission denied
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/share/gimp/2.0/help /usr/share/gimp/2.0/help none bind,ro 0 0): cannot write to "/var/lib/snapd/hostfs/usr/share/gimp/2.0/help" because it would affect the host in "/var/lib/snapd"
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/share/libreoffice/help /usr/share/libreoffice/help none bind,ro 0 0): cannot write to "/var/lib/snapd/hostfs/usr/share/libreoffice/help" because it would affect the host in "/var/lib/snapd"
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/share/sphinx_rtd_theme /usr/share/sphinx_rtd_theme none bind,ro 0 0): cannot write to "/var/lib/snapd/hostfs/usr/share/sphinx_rtd_theme" because it would affect the host in "/var/lib/snapd"
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/share/xubuntu-docs /usr/share/xubuntu-docs none bind,ro 0 0): cannot write to "/var/lib/snapd/hostfs/usr/share/xubuntu-docs" because it would affect the host in "/var/lib/snapd"
Gtk-Message: 18:10:06.788: Failed to load module "xapp-gtk3-module"
Gtk-Message: 18:10:06.792: Failed to load module "appmenu-gtk-module"
Gtk-Message: 18:10:06.803: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.
[3786, Main Thread] WARNING: GTK+ module /snap/firefox/5437/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.: 'glib warning', file /build/firefox/parts/firefox/build/toolkit/xre/nsSigHandlers.cpp:201
(firefox:3786): Gtk-WARNING **: 18:10:06.911: GTK+ module /snap/firefox/5437/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Gtk-Message: 18:10:06.911: Failed to load module "canberra-gtk-module"
[Parent 3786, Main Thread] WARNING: Failed to mkdir /home/bunk/snap/firefox/5437/.config/ibus/bus: Not a directory: 'glib warning', file /build/firefox/parts/firefox/build/toolkit/xre/nsSigHandlers.cpp:201
(firefox:3786): IBUS-WARNING **: 18:10:08.258: Failed to mkdir /home/bunk/snap/firefox/5437/.config/ibus/bus: Not a directory
Updateroutine von schwarzheit
sudo apt update && sudo apt upgrade && sudo snap refresh && sudo apt autopurge && sudo apt clean && sudo apt purge ~c
Neustart
firefox
Gtk-Message: 18:21:14.301: Failed to load module "xapp-gtk3-module"
Gtk-Message: 18:21:14.301: Failed to load module "appmenu-gtk-module"
Gtk-Message: 18:21:14.302: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.
[48137, Main Thread] WARNING: GTK+ module /snap/firefox/6495/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.: 'glib warning', file /build/firefox/parts/firefox/build/toolkit/xre/nsSigHandlers.cpp:201
(firefox_firefox:48137): Gtk-WARNING **: 18:21:14.318: GTK+ module /snap/firefox/6495/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Gtk-Message: 18:21:14.318: Failed to load module "canberra-gtk-module"
[Parent 48137, Main Thread] WARNING: Failed to mkdir /home/bunk/snap/firefox/6495/.config/ibus/bus: Not a directory: 'glib warning', file /build/firefox/parts/firefox/build/toolkit/xre/nsSigHandlers.cpp:201
(firefox_firefox:48137): IBUS-WARNING **: 18:21:15.104: Failed to mkdir /home/bunk/snap/firefox/6495/.config/ibus/bus: Not a directory
Wieder Neustart
firefox
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/local/share/doc /usr/local/share/doc none bind,ro 0 0): cannot write to "/var/lib/snapd/hostfs/usr/local/share/doc" because it would affect the host in "/var/lib/snapd"
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/share/gimp/2.0/help /usr/share/gimp/2.0/help none bind,ro 0 0): cannot write to "/var/lib/snapd/hostfs/usr/share/gimp/2.0/help" because it would affect the host in "/var/lib/snapd"
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/share/libreoffice/help /usr/share/libreoffice/help none bind,ro 0 0): cannot write to "/var/lib/snapd/hostfs/usr/share/libreoffice/help" because it would affect the host in "/var/lib/snapd"
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/share/sphinx_rtd_theme /usr/share/sphinx_rtd_theme none bind,ro 0 0): cannot write to "/var/lib/snapd/hostfs/usr/share/sphinx_rtd_theme" because it would affect the host in "/var/lib/snapd"
update.go:85: cannot change mount namespace according to change mount (/var/lib/snapd/hostfs/usr/share/xubuntu-docs /usr/share/xubuntu-docs none bind,ro 0 0): cannot write to "/var/lib/snapd/hostfs/usr/share/xubuntu-docs" because it would affect the host in "/var/lib/snapd"
Gtk-Message: 18:25:16.793: Failed to load module "xapp-gtk3-module"
Gtk-Message: 18:25:16.797: Failed to load module "appmenu-gtk-module"
Gtk-Message: 18:25:16.802: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.
[3111, Main Thread] WARNING: GTK+ module /snap/firefox/6495/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.: 'glib warning', file /build/firefox/parts/firefox/build/toolkit/xre/nsSigHandlers.cpp:201
(firefox_firefox:3111): Gtk-WARNING **: 18:25:16.875: GTK+ module /snap/firefox/6495/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Gtk-Message: 18:25:16.875: Failed to load module "canberra-gtk-module"
[Parent 3111, Main Thread] WARNING: Failed to mkdir /home/bunk/snap/firefox/6495/.config/ibus/bus: Not a directory: 'glib warning', file /build/firefox/parts/firefox/build/toolkit/xre/nsSigHandlers.cpp:201
(firefox_firefox:3111): IBUS-WARNING **: 18:25:17.738: Failed to mkdir /home/bunk/snap/firefox/6495/.config/ibus/bus: Not a directory
Wieder Neustart
firefox
2025/07/15 18:31:28.863728 system_key.go:147: cannot determine nfs usage in generateSystemKey: cannot parse /etc/fstab: expected at least 3 fields, found 2
interner Fehler, bitte melden: Ausführung von "firefox" fehlgeschlagen: timeout waiting for snap system profiles to get updated
Nun muss ich wieder mein Backup zurück einspielen