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[GH-ISSUE #3125] no way to selectively disable quiet-by-default in firejail.config #1962

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opened 2026-05-05 08:37:32 -06:00 by gitea-mirror · 4 comments
gitea-mirror commented 2026-05-05 08:37:32 -06:00
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Originally created by @jonleivent on GitHub (Jan 5, 2020).
Original GitHub issue: https://github.com/netblue30/firejail/issues/3125

There is no way to re-enable firejail output once quiet-by-default yes is in /etc/firejail/firejail.config.

I have quiet-by-default yes in my firejail.config so that profiles I have tested don't pollute my .xesssion-errors file. Unfortunately, there doesn't seem to be a way to re-enable verbose output for testing new profiles, short of editing firejail.config each time. I tried --ignore=quiet, --ignore=quiet-by-default, etc. with nothing working. Hence "quiet-by-default" is a bit of a misnomer.

As an alternative to quiet-by-default yes, I tried putting quiet in globals.local, but that still allows a few lines of output to get into .xsession-errors when starting up jails in ways other than the command line. BTW - I use firecfg, so I can't easily put --quiet on every firejail command line.

I recommend having a separate configuration for firejail when started via firecfg symlink vs. when started manually. Alternatively, add a --config=file command-line option to firejail - although that might violate security in multi-user environments.

I'm using firejail 0.9.58.2 in Debian buster.

Originally created by @jonleivent on GitHub (Jan 5, 2020). Original GitHub issue: https://github.com/netblue30/firejail/issues/3125 There is no way to re-enable firejail output once `quiet-by-default yes` is in /etc/firejail/firejail.config. I have `quiet-by-default yes` in my firejail.config so that profiles I have tested don't pollute my .xesssion-errors file. Unfortunately, there doesn't seem to be a way to re-enable verbose output for testing new profiles, short of editing firejail.config each time. I tried `--ignore=quiet`, `--ignore=quiet-by-default`, etc. with nothing working. Hence "quiet-by-default" is a bit of a misnomer. As an alternative to `quiet-by-default yes`, I tried putting `quiet` in globals.local, but that still allows a few lines of output to get into .xsession-errors when starting up jails in ways other than the command line. BTW - I use firecfg, so I can't easily put `--quiet` on every firejail command line. I recommend having a separate configuration for firejail when started via firecfg symlink vs. when started manually. Alternatively, add a `--config=file` command-line option to firejail - although that might violate security in multi-user environments. I'm using firejail 0.9.58.2 in Debian buster.
gitea-mirror 2026-05-05 08:37:32 -06:00
gitea-mirror commented 2026-05-05 08:37:35 -06:00
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@rusty-snake commented on GitHub (Jan 5, 2020):

Something like noquiet.

For everyone with the same problem and a newer firejail version. Since 0.9.60 it is possible to set FIREJAIL_QUIET=yes (env var).

<!-- gh-comment-id:570952600 --> @rusty-snake commented on GitHub (Jan 5, 2020): Something like `noquiet`. For everyone with the same problem and a newer firejail version. Since 0.9.60 it is possible to set `FIREJAIL_QUIET=yes` (env var).
gitea-mirror commented 2026-05-05 08:37:36 -06:00
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@jonleivent commented on GitHub (Jan 5, 2020):

Is there a description of firejail env vars somewhere?

<!-- gh-comment-id:570954007 --> @jonleivent commented on GitHub (Jan 5, 2020): Is there a description of firejail env vars somewhere?
gitea-mirror commented 2026-05-05 08:37:37 -06:00
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@rusty-snake commented on GitHub (Jan 5, 2020):

No.

$ grep "etenv(" src/**/*.c                                                                                              ⎇ master a849f8c -U
src/faudit/dbus.c:	char *str = getenv("DBUS_SESSION_BUS_ADDRESS");
src/faudit/main.c:	if (getenv("FIREJAIL_TEST_ARGUMENTS")) {
src/faudit/pid.c:	char *str = getenv("container");
src/faudit/pid.c:		str = getenv("SNAP");
src/fcopy/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/fcopy/main.c:	char *debug = getenv("FIREJAIL_DEBUG");
src/fcopy/main.c:	char *cl = getenv("FIREJAIL_FILE_COPY_LIMIT");
src/firecfg/main.c:	char *user = getenv("SUDO_USER");
src/firecfg/util.c:	char *path1 = getenv("PATH");
src/firejail/appimage.c:	if (setenv("APPIMAGE", abspath, 1) < 0)
src/firejail/appimage.c:	if (mntdir && setenv("APPDIR", mntdir, 1) < 0)
src/firejail/appimage.c:	if (size != 0 && setenv("ARGV0", appimage, 1) < 0)
src/firejail/appimage.c:	if (cfg.cwd && setenv("OWD", cfg.cwd, 1) < 0)
src/firejail/checkcfg.c:				if (setenv("FIREJAIL_FILE_COPY_LIMIT", ptr + 16, 1) == -1)
src/firejail/chroot.c:	if (getenv("FIREJAIL_X11")) {
src/firejail/dbus.c:	if (setenv("DBUS_SESSION_BUS_ADDRESS", env_var, 1) == -1) {
src/firejail/env.c:	if (setenv("QT_X11_NO_MITSHM", "1", 1) < 0)
src/firejail/env.c:	if (setenv("QML_DISABLE_DISK_CACHE", "1", 1) < 0)
src/firejail/env.c://	if (setenv("QTWEBENGINE_DISABLE_SANDBOX", "1", 1) < 0)
src/firejail/env.c://	if (setenv("MOZ_NO_REMOTE, "1", 1) < 0)
src/firejail/env.c:	if (setenv("container", "firejail", 1) < 0) // LXC sets container=lxc,
src/firejail/env.c:	if (cfg.shell && setenv("SHELL", cfg.shell, 1) < 0)
src/firejail/env.c:	if (setenv("KDE_FORK_SLAVES", "1", 1) < 0)
src/firejail/env.c:		char *prompt = getenv("FIREJAIL_PROMPT");
src/firejail/env.c:		if (setenv("PROMPT_COMMAND", "export PS1=\"\\[\\e[1;32m\\][\\u@\\h \\W]\\$\\[\\e[0m\\] \"", 1) < 0)
src/firejail/env.c:		if (setenv("PROMPT_COMMAND", ":", 1) < 0) // unsetenv() will not work here, bash still picks it up from somewhere
src/firejail/env.c:		setenv("FIREJAIL_QUIET", "yes", 1);
src/firejail/env.c:			if (setenv(env->name, env->value, 1) < 0)
src/firejail/env.c:			unsetenv(env->name);
src/firejail/fs.c:	char *xauth = getenv("XAUTHORITY");
src/firejail/fs_whitelist.c:			char *env = getenv("TMP");
src/firejail/join.c:			setenv("DISPLAY", display_str, 1);
src/firejail/main.c:	shell = getenv("SHELL");
src/firejail/main.c:	assert(getenv("LD_PRELOAD") == NULL);
src/firejail/main.c:	char *env_quiet = getenv("FIREJAIL_QUIET");
src/firejail/main.c:	char *container_name = getenv("container");
src/firejail/no_sandbox.c:	char *str = getenv("container");
src/firejail/paths.c:	char *path = getenv("PATH");
src/firejail/paths.c:		setenv("PATH", path, 1);
src/firejail/profile.c:	return (arg_x11_block || arg_x11_xorg || getenv("FIREJAIL_X11"));
src/firejail/profile.c:			char *x11env = getenv("FIREJAIL_X11");
src/firejail/profile.c:			char *x11env = getenv("FIREJAIL_X11");
src/firejail/profile.c:			char *x11env = getenv("FIREJAIL_X11");
src/firejail/profile.c:			char *x11env = getenv("FIREJAIL_X11");
src/firejail/pulseaudio.c:	char *name = getenv("XDG_RUNTIME_DIR");
src/firejail/pulseaudio.c:		if (setenv("PULSE_CLIENTCONFIG", pulsecfg, 1) < 0)
src/firejail/run_symlink.c:	char *p = getenv("PATH");
src/firejail/run_symlink.c:	assert(getenv("LD_PRELOAD") == NULL);
src/firejail/sandbox.c:	char *mycont = getenv("container");
src/firejail/sandbox.c:		char *path1 = getenv("PATH");
src/firejail/sandbox.c:		printf("LD_PRELOAD=%s\n", getenv("LD_PRELOAD"));
src/firejail/sbox.c:		char *cl = getenv("FIREJAIL_FILE_COPY_LIMIT");
src/firejail/sbox.c:			if (setenv("FIREJAIL_FILE_COPY_LIMIT", cl, 1) == -1)
src/firejail/sbox.c:			setenv("FIREJAIL_QUIET", "yes", 1);
src/firejail/sbox.c:			setenv("FIREJAIL_DEBUG", "yes", 1);
src/firejail/x11.c:	const char *display_str = getenv("DISPLAY");
src/firejail/x11.c:	setenv("FIREJAIL_X11", "yes", 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("DISPLAY", display_str, 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("FIREJAIL_X11", "yes", 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("DISPLAY", display_str, 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("DISPLAY", display_str, 1);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:				assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:		assert(getenv("LD_PRELOAD") == NULL);
src/firejail/x11.c:	setenv("FIREJAIL_X11", "yes", 1);
src/firejail/x11.c:	char *display = getenv("DISPLAY");
src/firejail/x11.c:	char *envar = getenv("XAUTHORITY");
src/firejail/x11.c:	if (setenv("XAUTHORITY", dest, 1) < 0)
src/firejail/x11.c:	char *xauthority = getenv("XAUTHORITY");
src/fldd/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/fnetfilter/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/fnet/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/fseccomp/main.c:	char *quiet = getenv("FIREJAIL_QUIET");
src/libtrace/libtrace.c:	char *logfile = getenv("FIREJAIL_TRACEFILE");
<!-- gh-comment-id:570956389 --> @rusty-snake commented on GitHub (Jan 5, 2020): No. ``` $ grep "etenv(" src/**/*.c ⎇ master a849f8c -U src/faudit/dbus.c: char *str = getenv("DBUS_SESSION_BUS_ADDRESS"); src/faudit/main.c: if (getenv("FIREJAIL_TEST_ARGUMENTS")) { src/faudit/pid.c: char *str = getenv("container"); src/faudit/pid.c: str = getenv("SNAP"); src/fcopy/main.c: char *quiet = getenv("FIREJAIL_QUIET"); src/fcopy/main.c: char *debug = getenv("FIREJAIL_DEBUG"); src/fcopy/main.c: char *cl = getenv("FIREJAIL_FILE_COPY_LIMIT"); src/firecfg/main.c: char *user = getenv("SUDO_USER"); src/firecfg/util.c: char *path1 = getenv("PATH"); src/firejail/appimage.c: if (setenv("APPIMAGE", abspath, 1) < 0) src/firejail/appimage.c: if (mntdir && setenv("APPDIR", mntdir, 1) < 0) src/firejail/appimage.c: if (size != 0 && setenv("ARGV0", appimage, 1) < 0) src/firejail/appimage.c: if (cfg.cwd && setenv("OWD", cfg.cwd, 1) < 0) src/firejail/checkcfg.c: if (setenv("FIREJAIL_FILE_COPY_LIMIT", ptr + 16, 1) == -1) src/firejail/chroot.c: if (getenv("FIREJAIL_X11")) { src/firejail/dbus.c: if (setenv("DBUS_SESSION_BUS_ADDRESS", env_var, 1) == -1) { src/firejail/env.c: if (setenv("QT_X11_NO_MITSHM", "1", 1) < 0) src/firejail/env.c: if (setenv("QML_DISABLE_DISK_CACHE", "1", 1) < 0) src/firejail/env.c:// if (setenv("QTWEBENGINE_DISABLE_SANDBOX", "1", 1) < 0) src/firejail/env.c:// if (setenv("MOZ_NO_REMOTE, "1", 1) < 0) src/firejail/env.c: if (setenv("container", "firejail", 1) < 0) // LXC sets container=lxc, src/firejail/env.c: if (cfg.shell && setenv("SHELL", cfg.shell, 1) < 0) src/firejail/env.c: if (setenv("KDE_FORK_SLAVES", "1", 1) < 0) src/firejail/env.c: char *prompt = getenv("FIREJAIL_PROMPT"); src/firejail/env.c: if (setenv("PROMPT_COMMAND", "export PS1=\"\\[\\e[1;32m\\][\\u@\\h \\W]\\$\\[\\e[0m\\] \"", 1) < 0) src/firejail/env.c: if (setenv("PROMPT_COMMAND", ":", 1) < 0) // unsetenv() will not work here, bash still picks it up from somewhere src/firejail/env.c: setenv("FIREJAIL_QUIET", "yes", 1); src/firejail/env.c: if (setenv(env->name, env->value, 1) < 0) src/firejail/env.c: unsetenv(env->name); src/firejail/fs.c: char *xauth = getenv("XAUTHORITY"); src/firejail/fs_whitelist.c: char *env = getenv("TMP"); src/firejail/join.c: setenv("DISPLAY", display_str, 1); src/firejail/main.c: shell = getenv("SHELL"); src/firejail/main.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/main.c: char *env_quiet = getenv("FIREJAIL_QUIET"); src/firejail/main.c: char *container_name = getenv("container"); src/firejail/no_sandbox.c: char *str = getenv("container"); src/firejail/paths.c: char *path = getenv("PATH"); src/firejail/paths.c: setenv("PATH", path, 1); src/firejail/profile.c: return (arg_x11_block || arg_x11_xorg || getenv("FIREJAIL_X11")); src/firejail/profile.c: char *x11env = getenv("FIREJAIL_X11"); src/firejail/profile.c: char *x11env = getenv("FIREJAIL_X11"); src/firejail/profile.c: char *x11env = getenv("FIREJAIL_X11"); src/firejail/profile.c: char *x11env = getenv("FIREJAIL_X11"); src/firejail/pulseaudio.c: char *name = getenv("XDG_RUNTIME_DIR"); src/firejail/pulseaudio.c: if (setenv("PULSE_CLIENTCONFIG", pulsecfg, 1) < 0) src/firejail/run_symlink.c: char *p = getenv("PATH"); src/firejail/run_symlink.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/sandbox.c: char *mycont = getenv("container"); src/firejail/sandbox.c: char *path1 = getenv("PATH"); src/firejail/sandbox.c: printf("LD_PRELOAD=%s\n", getenv("LD_PRELOAD")); src/firejail/sbox.c: char *cl = getenv("FIREJAIL_FILE_COPY_LIMIT"); src/firejail/sbox.c: if (setenv("FIREJAIL_FILE_COPY_LIMIT", cl, 1) == -1) src/firejail/sbox.c: setenv("FIREJAIL_QUIET", "yes", 1); src/firejail/sbox.c: setenv("FIREJAIL_DEBUG", "yes", 1); src/firejail/x11.c: const char *display_str = getenv("DISPLAY"); src/firejail/x11.c: setenv("FIREJAIL_X11", "yes", 1); src/firejail/x11.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/x11.c: setenv("DISPLAY", display_str, 1); src/firejail/x11.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/x11.c: setenv("FIREJAIL_X11", "yes", 1); src/firejail/x11.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/x11.c: setenv("DISPLAY", display_str, 1); src/firejail/x11.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/x11.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/x11.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/x11.c: setenv("DISPLAY", display_str, 1); src/firejail/x11.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/x11.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/x11.c: assert(getenv("LD_PRELOAD") == NULL); src/firejail/x11.c: setenv("FIREJAIL_X11", "yes", 1); src/firejail/x11.c: char *display = getenv("DISPLAY"); src/firejail/x11.c: char *envar = getenv("XAUTHORITY"); src/firejail/x11.c: if (setenv("XAUTHORITY", dest, 1) < 0) src/firejail/x11.c: char *xauthority = getenv("XAUTHORITY"); src/fldd/main.c: char *quiet = getenv("FIREJAIL_QUIET"); src/fnetfilter/main.c: char *quiet = getenv("FIREJAIL_QUIET"); src/fnet/main.c: char *quiet = getenv("FIREJAIL_QUIET"); src/fseccomp/main.c: char *quiet = getenv("FIREJAIL_QUIET"); src/libtrace/libtrace.c: char *logfile = getenv("FIREJAIL_TRACEFILE"); ```
gitea-mirror commented 2026-05-05 08:37:37 -06:00
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@netblue30 commented on GitHub (May 30, 2021):

Fixed! More fixes coming, tracking them in #4275.

<!-- gh-comment-id:850996920 --> @netblue30 commented on GitHub (May 30, 2021): Fixed! More fixes coming, tracking them in #4275.
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