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[Graham Mann <1972762@xxxxxxxxxxxxxxxxxx>]

ubuntu 24.04, Synology NAS

Much frustration when attempting to mount NAS using cifs (smb from file
manager and NFS are both OK)

cifs mount returns
Mount -> 'error(2): No such file or directory.
So looked in dmesg (sample below...)
[ 3448.140639] audit: type=1400 audit(1760437338.964:246): apparmor="DENIED" operation="mknod" class="file" profile="snap.firefox.firefox" name="/home/usernam/.local/share/fonts/.uuid.TMP-9fkBr6" pid=11249 comm=57656220436F6E74656E74 requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
[ 3702.558349] CIFS: Attempting to mount //192.168.178.51/volume1
[ 3703.184771] CIFS: VFS: cifs_mount failed w/return code = -2

Of course I check the CIFS entries and spent hours looking at
privileges, ownership, server setup, mount types etc etc, all the while
knowing NFS and file manager both worked (why I persevere with cifs is
another issue)

But of course the issue is with snap.firefox... worse still it isn't even listed in flatseal???
So now what...

-- 
You received this bug notification because you are a member of UBUNTU -
AL - BR, which is subscribed to Chromium Browser.
https://bugs.launchpad.net/bugs/1972762

Title:
  Firefox and Chromium snaps preventing apps and devices from working
  correctly.

Status in Chromium Browser:
  New
Status in Mozilla Firefox:
  New
Status in snapd:
  Invalid
Status in r-cran-plotly package in Ubuntu:
  Confirmed

Bug description:
  Many apps put files in /tmp or ~/.cache to then open those files with
  other apps. Files won't open from those locations with the Firefox
  snap. Just within a few days of using, I've found quite a few apps
  that don't work as they should or seem broken as a result.

  * Any archive manager (xarchive uses /tmp, file-roller and engrampa use ~/.cache, peazip uses ~/.ptmp)
  * Catfish (uses /tmp also for opening files in archives)
  * fish (fish_config uses an html file in /tmp and uses a browser for configuration)

  Other things not working:

  * WebUSB (Used in Chromium for securely interacting with USB devices, installing and updating Android devices, etc)
  * USBMidi (Used in Chromium and Firefox for using Midi instruments)

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