/usr/share/FBReader/ is in fbreader 0.12.10dfsg2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/FBReader/default/
/usr/share/FBReader/default/config.xml
/usr/share/FBReader/default/external.xml
/usr/share/FBReader/default/fullscreen_toolbar.xml
/usr/share/FBReader/default/keymap.xml
/usr/share/FBReader/default/styles.xml
/usr/share/FBReader/default/toolbar.xml
/usr/share/FBReader/formats/
/usr/share/FBReader/formats/fb2/
/usr/share/FBReader/formats/fb2/FBReaderVersion.ent
/usr/share/FBReader/formats/fb2/fb2genres.xml
/usr/share/FBReader/formats/html/
/usr/share/FBReader/formats/html/html.ent
/usr/share/FBReader/help/
/usr/share/FBReader/help/MiniHelp.cs.fb2
/usr/share/FBReader/help/MiniHelp.de.fb2
/usr/share/FBReader/help/MiniHelp.en.fb2
/usr/share/FBReader/help/MiniHelp.es.fb2
/usr/share/FBReader/help/MiniHelp.fi.fb2
/usr/share/FBReader/help/MiniHelp.fr.fb2
/usr/share/FBReader/help/MiniHelp.hu.fb2
/usr/share/FBReader/help/MiniHelp.id.fb2
/usr/share/FBReader/help/MiniHelp.it.fb2
/usr/share/FBReader/help/MiniHelp.lt.fb2
/usr/share/FBReader/help/MiniHelp.nl.fb2
/usr/share/FBReader/help/MiniHelp.ru.fb2
/usr/share/FBReader/help/MiniHelp.sv.fb2
/usr/share/FBReader/help/MiniHelp.uk.fb2
/usr/share/FBReader/help/MiniHelp.vi.fb2
/usr/share/FBReader/help/MiniHelp.zh.fb2
/usr/share/FBReader/network/
/usr/share/FBReader/network/booksonboard.com.xml
/usr/share/FBReader/network/certificates/
/usr/share/FBReader/network/certificates/litres.ru.crt
/usr/share/FBReader/network/feedbooks.com.xml
/usr/share/FBReader/network/litres.ru.xml
/usr/share/FBReader/network/manybooks.net.xml
/usr/share/FBReader/network/shucang.com.xml
/usr/share/FBReader/network/smashwords.com.xml
/usr/share/FBReader/resources/
/usr/share/FBReader/resources/ar.xml
/usr/share/FBReader/resources/cs.xml
/usr/share/FBReader/resources/de.xml
/usr/share/FBReader/resources/en.xml
/usr/share/FBReader/resources/es.xml
/usr/share/FBReader/resources/fi.xml
/usr/share/FBReader/resources/fr.xml
/usr/share/FBReader/resources/hu.xml
/usr/share/FBReader/resources/id.xml
/usr/share/FBReader/resources/it.xml
/usr/share/FBReader/resources/lt.xml
/usr/share/FBReader/resources/nl.xml
/usr/share/FBReader/resources/ru.xml
/usr/share/FBReader/resources/sv.xml
/usr/share/FBReader/resources/uk.xml
/usr/share/FBReader/resources/vi.xml
/usr/share/FBReader/resources/zh.xml