freetube: cannot open external player (mpv)

[enoryw]

Freetube doesn't open external player (mpv). There's no errors from the CLI and it appears no mpv process is started. When I run it without firejail, it opens fine. I'm on firejail latest version 0.9.74 and in my freetube.local I've also tried private-bin /usr/bin/mpv.

Any ideas?

[kmk3]

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

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

Freetube doesn't open external player (mpv)

For debugging, you could try to run mpv with the freetube profile and comment
lines in it until it works. Example:

firejail --private-bin=mpv --profile=freetube /usr/bin/mpv

Also, note that there is nothing explicitly allowing mpv in freetube.profile,
so that's probably related to why it doesn't work.

See the profiles that explicitly allow mpv:

$ git grep -l mpv -- etc/profile*
etc/profile-a-l/ani-cli.profile
etc/profile-a-l/anki.profile
etc/profile-a-l/celluloid.profile
etc/profile-a-l/chatterino.profile
etc/profile-a-l/firefox-common-addons.profile
etc/profile-a-l/gnome-mpv.profile
etc/profile-a-l/lobster.profile
etc/profile-m-z/QMediathekView.profile
etc/profile-m-z/mediathekview.profile
etc/profile-m-z/mov-cli.profile
etc/profile-m-z/mpsyt.profile
etc/profile-m-z/mpv.profile
etc/profile-m-z/pyradio.profile
etc/profile-m-z/ripperx.profile
etc/profile-m-z/rtv-addons.profile
etc/profile-m-z/smplayer.profile
etc/profile-m-z/smtube.profile
etc/profile-m-z/sound-juicer.profile
etc/profile-m-z/youtube-viewers-common.profile

[rieje]

firejail --debug freetube, firejail freetube.

All the profiles are standard and i have custom freetube.local with additional options which was able to silence some of the errors to get to the output of the above commands:

ignore noexec ${HOME}
whitelist ${HOME}/bin

private-bin ${HOME}/bin/mpv,xdg-settings,grep,cut,basename,xdg-open

include allow-bin-sh.inc
private-bin bash,sh

ignore noexec ${HOME}

whitelist ${HOME}/bin

dbus-user filter
dbus-user.talk org.freedesktop.Notifications
ignore dbus-user none

Of note: I have ~/bin/mpv sh script (highest precedence in $PATH) that just runs /usr/bin/mpv. The script is linked to /usr/local/bin/mpv. It's a wrapper shell script shared across my machines runs mpv conditionally with some machine-specific args, none in this case.