Now in Book Library - Library Management Joomla Extension we automatically show page title depend from property title.
we did that with help Function(there are you may change): in file booklibrary.php
"static function addTitleAndMetaTags() "
and in this function find
$blm = "Booklibrary Manager "
and change Booklibrary Manager as you need
in php file and change browser title
or you may instal sh404sef component - with it help - you may set self title for every page
!!!Note: Before make any changes, please make the backup of your file!!!