Debian Security Advisory 1160-2 – The latest security updates of Mozilla introduced a regression that led to a disfunctional attachment panel which warrants a correction to fix this issue.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/50104/dsa-1160-2.txt
Source: https://packetstormsecurity.com/files/50104/Debian-Linux-Security-Advisory-1160-2.html