(In reply to Al Savage from comment #6)
> [...] it may not be limited to FF, snaps, or even Mozilla, since my Chrome install behaves similarly.
You are right, this is actually affecting other applications, too. I get the exact same behavior described in the steps to reproduce when using Chromium installed via snap: Local files open fine, opening files on network shares does not trigger any reaction.
(In reply to Al Savage from comment #6)
> [...] it may not be limited to FF, snaps, or even Mozilla, since my Chrome install behaves similarly.
You are right, this is actually affecting other applications, too. I get the exact same behavior described in the steps to reproduce when using Chromium installed via snap: Local files open fine, opening files on network shares does not trigger any reaction.
Should this issue here remain open?