[Bug 91348] Saving of files only possible in Home folder, not on USB disk, other partitions

[ghormax]

Public bug reported:

Binary package hint: firefox

I am unable to save files on my USB stick or my other partitions from
within Mozilla Firefox

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

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Saving of files only possible in Home folder, not on USB disk, other partitions
https://launchpad.net/bugs/91348