.XPI

📌 An .XPI object is recognized as a compressed installation archive applied by multiple Mozilla apps and projects, among which SeaMonkey, Thunderbird, and Firefox toolkits should be noted on the first hand. Basically, an ordinary .XPI item includes a custom app add-on, such as a Firefox theme, toolkit, or plug-in. Most of the .XPI container branches are composed of readme.md, install.rdf, and install.js tree nodes, which also contain the internal add-on’s installation guides. In most of the cases, the .XPI file category stands out as a renamed .ZIP archive branch which Mozilla apps typically exploit to install and open custom add-ons or extensions. These archive subtypes frequently include .JSON, .HTML, .CSS, and .JS content which basically comprise the code required for particular plug-in installation.

How to open an .XPI file?

📌 .XPI file instances can be freely opened and sustained by all top-notch Mozilla projects and services, such as SeaMonkey, Thunderbird, and Firefox. As far as .XPI entries serve for storing and handling custom extensions and add-ons within a particular Mozilla suite, you may open up and review proper .XPI item constitution and layout with a picked app or suite. The .XPI file definition is consistent with all major desktop platforms and shells. Furthermore, the noted file objects can be reviewed and operated on mobile phones or tablets, compliant with Android UIs. iPhones and iPads are not supported by the predefined technological standard. At last, you can effortlessly decompress and unpackage .XPI archive contents by manually adjusting the instance extension to .ZIP value, and after that make use of an ordinary, accustomed file archiver, accessible within your OS infrastructure.