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[GH-ISSUE #6505] librewolf: cannot open new URLs into running instance #3293

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opened 2026-05-05 09:53:46 -06:00 by gitea-mirror · 2 comments
gitea-mirror commented 2026-05-05 09:53:46 -06:00
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Originally created by @algor512 on GitHub (Oct 11, 2024).
Original GitHub issue: https://github.com/netblue30/firejail/issues/6505

Description

firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage -new-tab after firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage shows "Firefox is already running, but is not responding."

Steps to Reproduce

  1. Run LC_ALL=C firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage
  2. Run LC_ALL=C firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage -new-tab
  3. Get a window saying "Firefox is already running, but is not responding."

Expected behavior

A new tab appears in the existing Librewolf instance.

Actual behavior

I get the message "Firefox is already running, but is not responding."

Behavior without a profile

It works as expected.

Additional context

I have to whitelist $XDG_RUNTIME_DIR (which is /tmp/1000-runtime-dir on my machine) in order to have
sound in my browser.

Environment

Linux 6.6.54_1 x86_64, Void Linux, firejail:

firejail version 0.9.72

Compile time support:
        - always force nonewprivs support is disabled
        - AppArmor support is enabled
        - AppImage support is enabled
        - chroot support is enabled
        - D-BUS proxy support is enabled
        - file transfer support is enabled
        - firetunnel support is disabled
        - IDS support is disabled
        - networking support is enabled
        - output logging is enabled
        - overlayfs support is disabled
        - private-home support is enabled
        - private-cache and tmpfs as user enabled
        - SELinux support is disabled
        - user namespace support is enabled
        - X11 sandboxing support is enabled

Checklist

  • The issues is caused by firejail (i.e. running the program by path (e.g. /usr/bin/vlc) "fixes" it).
  • I can reproduce the issue without custom modifications (e.g. globals.local).
  • The program has a profile. (If not, request one in https://github.com/netblue30/firejail/issues/1139)
  • The profile (and redirect profile if exists) hasn't already been fixed upstream.
  • I have performed a short search for similar issues (to avoid opening a duplicate).
    • I'm aware of browser-allow-drm yes/browser-disable-u2f no in firejail.config to allow DRM/U2F in browsers.
  • I used --profile=PROFILENAME to set the right profile. (Only relevant for AppImages)

Log

$ firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage
Reading profile /etc/firejail/librewolf.profile
Reading profile /etc/firejail/whitelist-usr-share-common.inc
Reading profile /etc/firejail/firefox-common.profile
Reading profile /etc/firejail/disable-common.inc
Reading profile /etc/firejail/disable-devel.inc
Reading profile /etc/firejail/disable-exec.inc
Reading profile /etc/firejail/disable-interpreters.inc
Reading profile /etc/firejail/disable-proc.inc
Reading profile /etc/firejail/disable-programs.inc
Reading profile /etc/firejail/whitelist-common.inc
Reading profile /etc/firejail/whitelist-run-common.inc
Reading profile /etc/firejail/whitelist-runuser-common.inc
Reading profile /etc/firejail/whitelist-var-common.inc
Seccomp list in: !chroot, check list: @default-keep, prelist: unknown,
Parent pid 1495, child pid 1500

** Warning: dropping all Linux capabilities and setting NO_NEW_PRIVS prctl **

Mounting appimage type 2
Warning: An abstract unix socket for session D-BUS might still be available. Use --net or remove unix from --protocol set.
Warning: /sbin directory link was not blacklisted
Warning: /usr/sbin directory link was not blacklisted
Warning: not remounting /tmp/1000-runtime-dir.f3y/doc
Seccomp list in: !chroot, check list: @default-keep, prelist: unknown,
Warning: Replacing profile instead of stacking it. It is a legacy behavior that can result in relaxation of the protection. It is here as a temporary measure to unbreak the software that has been broken by switching to the stacking behavior.
Warning: Cannot confine the application using AppArmor.
Maybe firejail-default AppArmor profile is not loaded into the kernel.
As root, run "aa-enforce firejail-default" to load it.
Child process initialized in 193.96 ms
ATTENTION: default value of option mesa_glthread overridden by environment.
output goes here

$ firejail --appimage ~/.local/appimages/librewolf.AppImage -new-tab "www.google.ru"
Reading profile /etc/firejail/librewolf.profile
Reading profile /etc/firejail/whitelist-usr-share-common.inc
Reading profile /etc/firejail/firefox-common.profile
Reading profile /etc/firejail/disable-common.inc
Reading profile /etc/firejail/disable-devel.inc
Reading profile /etc/firejail/disable-exec.inc
Reading profile /etc/firejail/disable-interpreters.inc
Reading profile /etc/firejail/disable-proc.inc
Reading profile /etc/firejail/disable-programs.inc
Reading profile /etc/firejail/whitelist-common.inc
Reading profile /etc/firejail/whitelist-run-common.inc
Reading profile /etc/firejail/whitelist-runuser-common.inc
Reading profile /etc/firejail/whitelist-var-common.inc
Seccomp list in: !chroot, check list: @default-keep, prelist: unknown,
Parent pid 2392, child pid 2397

** Warning: dropping all Linux capabilities and setting NO_NEW_PRIVS prctl **

Mounting appimage type 2
Warning: An abstract unix socket for session D-BUS might still be available. Use --net or remove unix from --protocol set.
Warning: /sbin directory link was not blacklisted
Warning: /usr/sbin directory link was not blacklisted
Seccomp list in: !chroot, check list: @default-keep, prelist: unknown,
Warning: Replacing profile instead of stacking it. It is a legacy behavior that can result in relaxation of the protection. It is here as a temporary measure to unbreak the software that has been broken by switching to the stacking behavior.
Warning: Cannot confine the application using AppArmor.
Maybe firejail-default AppArmor profile is not loaded into the kernel.
As root, run "aa-enforce firejail-default" to load it.
Child process initialized in 185.76 ms
ATTENTION: default value of option mesa_glthread overridden by environment.
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile directory.
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile directory.
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile
directory.
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile directory.
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile directory.
Originally created by @algor512 on GitHub (Oct 11, 2024). Original GitHub issue: https://github.com/netblue30/firejail/issues/6505 ### Description `firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage -new-tab` after `firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage` shows "Firefox is already running, but is not responding." ### Steps to Reproduce 1. Run `LC_ALL=C firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage` 2. Run `LC_ALL=C firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage -new-tab` 3. Get a window saying "Firefox is already running, but is not responding." ### Expected behavior A new tab appears in the existing Librewolf instance. ### Actual behavior I get the message "Firefox is already running, but is not responding." ### Behavior without a profile It works as expected. ### Additional context I have to whitelist $XDG_RUNTIME_DIR (which is /tmp/1000-runtime-dir on my machine) in order to have sound in my browser. ### Environment Linux 6.6.54_1 x86_64, Void Linux, firejail: ``` firejail version 0.9.72 Compile time support: - always force nonewprivs support is disabled - AppArmor support is enabled - AppImage support is enabled - chroot support is enabled - D-BUS proxy support is enabled - file transfer support is enabled - firetunnel support is disabled - IDS support is disabled - networking support is enabled - output logging is enabled - overlayfs support is disabled - private-home support is enabled - private-cache and tmpfs as user enabled - SELinux support is disabled - user namespace support is enabled - X11 sandboxing support is enabled ``` ### Checklist - [x] The issues is caused by firejail (i.e. running the program by path (e.g. `/usr/bin/vlc`) "fixes" it). - [x] I can reproduce the issue without custom modifications (e.g. globals.local). - [x] The program has a profile. (If not, request one in `https://github.com/netblue30/firejail/issues/1139`) - [ ] The profile (and redirect profile if exists) hasn't already been fixed [upstream](https://github.com/netblue30/firejail/tree/master/etc). - [x] I have performed a short search for similar issues (to avoid opening a duplicate). - [x] I'm aware of `browser-allow-drm yes`/`browser-disable-u2f no` in `firejail.config` to allow DRM/U2F in browsers. - [ ] I used `--profile=PROFILENAME` to set the right profile. (Only relevant for AppImages) ### Log <details> ``` $ firejail --whitelist=$XDG_RUNTIME_DIR --appimage ~/.local/appimages/librewolf.AppImage Reading profile /etc/firejail/librewolf.profile Reading profile /etc/firejail/whitelist-usr-share-common.inc Reading profile /etc/firejail/firefox-common.profile Reading profile /etc/firejail/disable-common.inc Reading profile /etc/firejail/disable-devel.inc Reading profile /etc/firejail/disable-exec.inc Reading profile /etc/firejail/disable-interpreters.inc Reading profile /etc/firejail/disable-proc.inc Reading profile /etc/firejail/disable-programs.inc Reading profile /etc/firejail/whitelist-common.inc Reading profile /etc/firejail/whitelist-run-common.inc Reading profile /etc/firejail/whitelist-runuser-common.inc Reading profile /etc/firejail/whitelist-var-common.inc Seccomp list in: !chroot, check list: @default-keep, prelist: unknown, Parent pid 1495, child pid 1500 ** Warning: dropping all Linux capabilities and setting NO_NEW_PRIVS prctl ** Mounting appimage type 2 Warning: An abstract unix socket for session D-BUS might still be available. Use --net or remove unix from --protocol set. Warning: /sbin directory link was not blacklisted Warning: /usr/sbin directory link was not blacklisted Warning: not remounting /tmp/1000-runtime-dir.f3y/doc Seccomp list in: !chroot, check list: @default-keep, prelist: unknown, Warning: Replacing profile instead of stacking it. It is a legacy behavior that can result in relaxation of the protection. It is here as a temporary measure to unbreak the software that has been broken by switching to the stacking behavior. Warning: Cannot confine the application using AppArmor. Maybe firejail-default AppArmor profile is not loaded into the kernel. As root, run "aa-enforce firejail-default" to load it. Child process initialized in 193.96 ms ATTENTION: default value of option mesa_glthread overridden by environment. output goes here $ firejail --appimage ~/.local/appimages/librewolf.AppImage -new-tab "www.google.ru" Reading profile /etc/firejail/librewolf.profile Reading profile /etc/firejail/whitelist-usr-share-common.inc Reading profile /etc/firejail/firefox-common.profile Reading profile /etc/firejail/disable-common.inc Reading profile /etc/firejail/disable-devel.inc Reading profile /etc/firejail/disable-exec.inc Reading profile /etc/firejail/disable-interpreters.inc Reading profile /etc/firejail/disable-proc.inc Reading profile /etc/firejail/disable-programs.inc Reading profile /etc/firejail/whitelist-common.inc Reading profile /etc/firejail/whitelist-run-common.inc Reading profile /etc/firejail/whitelist-runuser-common.inc Reading profile /etc/firejail/whitelist-var-common.inc Seccomp list in: !chroot, check list: @default-keep, prelist: unknown, Parent pid 2392, child pid 2397 ** Warning: dropping all Linux capabilities and setting NO_NEW_PRIVS prctl ** Mounting appimage type 2 Warning: An abstract unix socket for session D-BUS might still be available. Use --net or remove unix from --protocol set. Warning: /sbin directory link was not blacklisted Warning: /usr/sbin directory link was not blacklisted Seccomp list in: !chroot, check list: @default-keep, prelist: unknown, Warning: Replacing profile instead of stacking it. It is a legacy behavior that can result in relaxation of the protection. It is here as a temporary measure to unbreak the software that has been broken by switching to the stacking behavior. Warning: Cannot confine the application using AppArmor. Maybe firejail-default AppArmor profile is not loaded into the kernel. As root, run "aa-enforce firejail-default" to load it. Child process initialized in 185.76 ms ATTENTION: default value of option mesa_glthread overridden by environment. JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile directory. JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile directory. JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile directory. JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile directory. JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 84: Error: Can't find profile directory. ``` </details>
gitea-mirror 2026-05-05 09:53:46 -06:00
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gitea-mirror commented 2026-05-05 09:53:49 -06:00
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@rusty-snake commented on GitHub (Oct 11, 2024):

  • The profile (and redirect profile if exists) hasn't already been fixed upstream.

How did you checked this? Are you sure that the fix for #6413 isn't sufficient for you?

<!-- gh-comment-id:2407480471 --> @rusty-snake commented on GitHub (Oct 11, 2024): > - [ ] The profile (and redirect profile if exists) hasn't already been fixed [upstream](https://github.com/netblue30/firejail/tree/master/etc). How did you checked this? Are you sure that the fix for #6413 isn't sufficient for you?
gitea-mirror commented 2026-05-05 09:53:49 -06:00
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@algor512 commented on GitHub (Oct 11, 2024):

I've tried a few solutions for firefox, didn't think there would be anything specific for librewolf.

Adding just dbus-user.own io.gitlab.firefox.* to ~/.config/firejail/librewolf.profile doesn't solve the issue. However, I've tried to add

dbus-user filter
ignore dbus-user none
dbus-user.own io.gitlab.firefox.*

and it works!

Thank you, and sorry for the disturbance.

<!-- gh-comment-id:2407520125 --> @algor512 commented on GitHub (Oct 11, 2024): I've tried a few solutions for firefox, didn't think there would be anything specific for librewolf. Adding just `dbus-user.own io.gitlab.firefox.*` to `~/.config/firejail/librewolf.profile` doesn't solve the issue. However, I've tried to add ``` dbus-user filter ignore dbus-user none dbus-user.own io.gitlab.firefox.* ``` and it works! Thank you, and sorry for the disturbance.
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Reference: github-starred/firejail#3293
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