Bug#921532: evince: can't open a pdf from firefox (apparmor error)

[Jason Crain]

On Wed, Feb 06, 2019 at 04:20:32PM +0100, Julien Cristau wrote:
> [239440.060481] audit: type=1400 audit(1549462128.942:91): apparmor="DENIED" operation="file_mmap" profile="/usr/bin/evince" name="/home/jcristau/firefox/beta/firefox/libnss3.so" pid=4992 comm="EvJobScheduler" requested_mask="m" denied_mask="m" fsuid=1000 ouid=1000
> [239440.062127] audit: type=1400 audit(1549462128.942:92): apparmor="DENIED" operation="file_mmap" profile="/usr/bin/evince" name="/home/jcristau/firefox/beta/firefox/libnss3.so" pid=4992 comm="EvJobScheduler" requested_mask="m" denied_mask="m" fsuid=1000 ouid=1000
> 
> I'm pretty sure this worked not too long ago.  I've no idea why it's
> trying to mmap firefox's libnss.

Have you set $LD_LIBRARY_PATH, which could cause evince to load the
wrong libnss?