This file, called an <a href="%(url)s">Install Manifest</a>, is used by Add-on Manager-enabled XUL applications to determine information about an add-on as it is being installed. It contains metadata identifying the add-on, providing information about who created it, where more information can be found about it, which versions of what applications it is compatible with, how it should be updated, and so on. The format of the Install Manifest is RDF/XML.
Toś ta dataja, pomjenjona <a href="%(url)s">instalaciski manifest</a>, wužywa se wót XUL-nałoženjow, kótarež zmóžnjaju se pśez zastojnik dodankow, aby informacije wó dodanku pśi jogo instalěrowanju dostali. Wopśimujo metadaty, kótarež identificěruju dodank, bitujo informacije wó tom, chtož jo jen wuwił, źož su dalšne informacije wó njom k dispoziciji, z kótarymi wersijami kótarych nałoženjow su kompatibelne, kak ma se aktualizěrowaś a tak dalej. Format instalaciskego manifesta jo RDF/XML.