: D/NativeMessagingPortal got response signal for /org/freedesktop/portal/desktop/request/1_301/firefox/1399974242 in session /org Keepassxc_keepassxc_browser_1791972916, pending response for /org/freedesktop/portal/desktop/request/1_301/firefox/1399974242 : D/NativeMessagingPortal native application start requested in session /org/freedesktop/portal/desktop/session/1_301/firefox_org_ Reedesktop/portal/desktop/session/1_301/firefox_org_keepassxc_keepassxc_browser_1791972916 : D/NativeMessagingPortal starting _browser, requested by in session /org/f : D/NativeMessagingPortal session created with handle /org/freedesktop/portal/desktop/session/1_301/firefox_org_keepassxc_keepassx We see that the KeepassXC extension does it’s stuff correctly : D/NativeMessagingPortal creating session with handle suffix firefox_org_keepassxc_keepassxc_browser_1791972916 When I trigger the snap $ MOZ_LOG=NativeMessagingPortal:5 snap run firefox Webextensions _browser snap.firefox yes 0x00 Permissions are: $ flatpak permissions webextensions

The TL:DR: it looks like one extension failing to communicate via NativeMessaging can prevent KeepassXC’s initial keyexchange from working I’ve set a couple of Firefox’s up with KeepassXC this morning, and had one fail, so figured it was worth reporting back. : D/NativeMessagingPortal cannot close session /org/freedesktop/portal/desktop/session/1_139/firefox_org_gnome_chrome_gnome_shell_1223787496, unknown handle : D/NativeMessagingPortal session /org/freedesktop/portal/desktop/session/1_139/firefox_org_gnome_chrome_gnome_shell_1223787496 was closed by the portal : D/NativeMessagingPortal native application start canceled by user in session /org/freedesktop/portal/desktop/session/1_139/firefox_org_gnome_chrome_gnome_shell_1223787496 : D/NativeMessagingPortal got response signal for /org/freedesktop/portal/desktop/request/1_139/firefox/1121656702 in session /org/freedesktop/portal/desktop/session/1_139/firefox_org_gnome_chrome_gnome_shell_1223787496 : D/NativeMessagingPortal native application start requested in session /org/freedesktop/portal/desktop/session/1_139/firefox_org_gnome_chrome_gnome_shell_1223787496, pending response for /org/freedesktop/portal/desktop/request/1_139/firefox/1121656702 : D/NativeMessagingPortal starting _gnome_shell, requested by in session /org/freedesktop/portal/desktop/session/1_139/firefox_org_gnome_chrome_gnome_shell_1223787496 : D/NativeMessagingPortal session created with handle /org/freedesktop/portal/desktop/session/1_139/firefox_org_gnome_chrome_gnome_shell_1223787496 : D/NativeMessagingPortal creating session with handle suffix firefox_org_gnome_chrome_gnome_shell_1223787496

Ii xdg-desktop-portal-gtk 1.14.0-1build1 amd64 GTK+/GNOME portal backend for xdg-desktop-portal Ii xdg-desktop-portal-gnome 42.0.1-1ubuntu2 amd64 GNOME portal backend for xdg-desktop-portal Ii xdg-desktop-portal 1.14.4-1ubuntu2~22.04.1 amd64 desktop integration portal for Flatpak and Snap I can’t get it to work : # snap list | grep firefoxįirefox 104.0b9-1 1689 latest/beta mozilla**.

Keepassxc browser chrome