Firefox does not save anything [SOLVED]

dummy@example.com (eyeV) — Sat, 04 Mar 2023 16:47:08 +0000

After right-clicking on the image > "Save image as...", nothing happens
Firefox / Librewolf does not save anything, the download simply does not start, the saving folder selection window does not appear

In the browser's log it wrote an error:
Can't open portal file chooser: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod

I decided to leave the solution to this problem here because it is not found in the search engine

SOLVED!!!

You should have installed the xdg-desktop-portal-gtk package as well as the xdg-desktop-portal package (preferably)

In my case it is:
su
apt install xdg-desktop-portal-gtk xdg-desktop-portal

!!! Make sure to reboot your system afterwards !!!

Dev1 Galaxy Forum / Firefox does not save anything [SOLVED]

Firefox does not save anything [SOLVED]