The contents of all pages are searched to find links to the current page. The BackLinks function also answers the question: "Which pages contain the title of this page?".
46 pages link to Mozilla:
Such a list can be embedded on any page by using the BackLinks WikiPlugin. It accepts the following parameters:
46 pages link to Mozilla:
lib/WikiPlugin.php (In template 'body' < 'html'):236: Notice: trailing cruft in plugin args: 'page'