Thunderbird 78.7.1 cannot access dbus when saving attachments

[pizzonia]

I solved the above problem by installing xdg-desktop-portals sudo apt install xdg-desktop-portal xdg-desktop-portal-kde xdg-desktop-portal-gtk

I suppose that people that do not use KDE should avoid to install xdg-desktop-portal-kde.

Some information about xdg-portals and snaps can be found at

XDG desktop portals

Portals are a standardised framework allowing desktop applications to use resources outside of their sandbox. The file chooser portal, for example, opens a native file chooser on the host system. When the user selects a file, the application is granted access to that file. Portals provide a range of common features to applications, including: Opening a file with a file chooser Opening URIs in other applications Preventing the device from suspend/sleep/powering off Sending email Showing notifi…