Szia!

Reading package lists... Done
Building dependency tree
Reading state information... Done
gconf-service is already the newest version (3.2.6-4).
gconf-service set to manually installed.
libatk1.0-0 is already the newest version (2.22.0-1).
libatk1.0-0 set to manually installed.
libgconf-2-4 is already the newest version (3.2.6-4).
libgconf-2-4 set to manually installed.
libgdk-pixbuf2.0-0 is already the newest version (2.36.5-2+deb9u2).
libgdk-pixbuf2.0-0 set to manually installed.
libgtk2.0-0 is already the newest version (2.24.31-2).
libnspr4 is already the newest version (2:4.12-6).
libnspr4 set to manually installed.
libnss3 is already the newest version (2:3.26.2-1.1+deb9u1).
libcairo2 is already the newest version (1.14.8-1+rpi1).
libcairo2 set to manually installed.
libraspberrypi0 is already the newest version (1.20190517-1).

Package libnspr4-0d is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

Package libnss3-1d is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'libnspr4-0d' has no installation candidate
E: Package 'libnss3-1d' has no installation candidate

Továbbra sem megy