[Bug 2117031] [NEW] snap firefox : user unknown with sssd / ldap

[schoubi]

Public bug reported:

Hi,

On a linux noble install, firefox is obtained via snap :

________________________________________

# snap list
Name               Version          Rev    Tracking       Publisher   Notes
bare               1.0              5      latest/stable  canonical✓  base
core22             20250612         2045   latest/stable  canonical✓  base
firefox            140.0.4-1        6495   latest/stable  mozilla✓    -
gnome-42-2204      0+git.38ea591    202    latest/stable  canonical✓  -
gtk-common-themes  0.1-81-g442e511  1535   latest/stable  canonical✓  -
snapd              2.70             24792  latest/stable  canonical✓  snapd
thunderbird        128.12.0esr-1    751    latest/stable  canonical✓  -
_________________________________________

the system use sssd/ldap to authenticate the user, and to obtain his id
:

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cuser at linux:~$ id
uid=8261(cuser) gid=1053(mainldapgroup) groups=1053(mainldapgroup),4(adm),20(dialout),24(cdrom),27(sudo),30(dip),46(plugdev),118(lpadmin),1117(ldapgroup1),1185(ldapgroup2),1215(ldapgroup3)
________________________________________

but firefox seems unable to obtain this informations through snap :

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snap run --shell firefox
groups: cannot find name for group ID 1053
groups: cannot find name for group ID 1117
groups: cannot find name for group ID 1185
groups: cannot find name for group ID 1215
To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

I have no name!
________________________________________

as a consequence, print job through firefox are sent as "unknown user"
to cups, on our centralized printing system, this makes the print job to
fail...

A workaround for the bug appears here :
https://forum.snapcraft.io/t/print-job-username-set-to-unknown/34986/9
but it involved using NSCD, which is incompatible with SSSD :
https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/system-
level_authentication_guide/usingnscd-sssd

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  snap firefox : user unknown with sssd / ldap

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