Now I can only see the appamor error log for lsb_release: audit: type=1400 audit(1580483233.981:104): apparmor="DENIED" operation="exec" profile="torbrowser_firefox" name= "/usr/bin/lsb_release" pid=29898 comm="firefox.real" requested_mask="x" denied_mask="x" fsuid=1000 ouid=0
but TB starts successfully. so it seems no harm.
