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[GH-ISSUE #6839] thunderbird: Failed to connect to Wayland display #3393
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Reference: github-starred/firejail#3393
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Originally created by @Gilrain on GitHub (Jul 26, 2025).
Original GitHub issue: https://github.com/netblue30/firejail/issues/6839
Description
Thunderbird fails to launch with the default profile, stating it cannot find a WAYLAND_DISPLAY.
Commenting the following in thunderbird.profile allows the program to start normally:
Steps to Reproduce
Behavior without a profile
Environment
Additional context
firefox-common.local:
Log
Output of
LC_ALL=C firejail --debug /usr/bin/thunderbirdhttps://gist.github.com/Gilrain/e8d3dd62f562a5a450bd890299f829ad.js
Output of
env | grep DISPLAYOutput of
ls -l /run /run/user/1000Output of
firejail --profile=thunderbird ls -l /run /run/user/1000@kmk3 commented on GitHub (Jul 27, 2025):
Basic debugging information is missing; please follow the bug report template:
@kmk3 commented on GitHub (Jul 27, 2025):
Cannot reproduce.
This looks like it's due to local modifications.
Is there anything in any globals.local?
This should be:
What is the output of the following?
@Gilrain commented on GitHub (Jul 28, 2025):
Sorry, the report was not complete: I had modified firefox-common.profile to enable some dbus functionalities. These cause thunderbird to fail. Of course, Firefox 141 works.
I amended the report.
@rusty-snake commented on GitHub (Aug 2, 2025):
If you add one of them to your
firefox-common.local, you revoke access to x11/wayland/pulseaudio/ .... for thunderbird.Either don't add them to firefox-common but firefox.local instead or make sure thunderbird includes
whitelist-runuser-common.incif it does not break things (gpg) for you.@kmk3
b787548b1dmoved these three lines from the browser profiles to firefox-common, leading users into a wrong direction.@kmk3 commented on GitHub (Aug 3, 2025):
Good catch, should be fixed in:
@Gilrain commented on GitHub (Aug 5, 2025):
I can confirm that it works now.