File Extension XPI

.XPI File

File extension: XPI
File type: Extension Archive


Notes about the XPI file extension:



To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The XPI file type is primarily associated with 'Mozilla/Firefox Browser' by Mozilla.

This is basically a ZIP file that, when opened by the browser utility, installs a browser extension.

To install a local version of the file, you can drag and drop the file onto an open Firefox browser window or use the Firefox File | Open menu command. In most cases the file will be downloaded via Firefox after you've searched for new add-ons and will, at that time, automatically install itself and be available after a browser restart.

This extension applies to both Mozilla and Firefox browsers.


Detailed information for file extension XPI:


Primary association: Mozilla/Firefox Browser
Company: Mozilla
File classification: Archive
Mime type: application/x-xpinstall
Identifying characters Hex: 50 4B 03 04 , ASCII: PK
Related links: Mozilla Extension Site
File Identifier - TrID
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database




To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension XPI click this link to expand/hide the additional area.

System Info for File Extension .XPI

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: PAZIP
EXEFile: %ProgramFiles%\PowerArchiver\POWERARC.EXE %1

ProgramID: ZipZag.xpi
EXEFile: %ProgramFiles%\ZipZag\zipzag.exe %1

ProgramID: uzip
EXEFile: %ProgramFiles%\ULTIMA~1\uzip.exe

ProgramID: PAZIP
EXEFile: %ProgramFiles%\Accessories\PowerArchiver\POWERARC.EXE


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