/usr/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}/{097d3191-e6fa-4728-9826-b533d755359d} is in xul-ext-all-in-one-sidebar 0.7.23-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}/../../../xul-ext/all-in-one-sidebar