Host file managers cannot find files in sandbox /proc with --private

[bingmatv]

While using --private --noprofile parameters, any downloaded files in sandbox are invisible for Host file managers

find /proc|grep filename

can't find the file.

[rusty-snake]

Your post lists a few facts, but no question or request. So what do you want?

While using --private --noprofile parameters, any downloaded files in sandbox are invisible for Host file managers

Expected.

can't find the file.

procfs and magic symlinks are a crazy, confusing thing. If you think find / grep has a bug, report it to them.

Also where do you expect the file to be found in proc? In /proc/<pid>/fd? In /proc/<pid>/fdinfo?

[kmk3]

Basic debugging information is missing; please follow the bug report template:

• https://github.com/netblue30/firejail/issues/new?template=bug_report.md

[kmk3]

While using --private --noprofile parameters, any downloaded files in sandbox
are invisible for Host file managers

This is the expected behavior of --private.

To transfer files from the sandbox, see --get= and FILE TRANSFER in man firejail.

Alternatively, use --private=foo or whitelist the paths that you need instead
of using --private.

See also:

• Easy way to transfer files from temporary sandboxed ~/Download directory? #4746