Download EXTENSION.browser

Name: EXTENSION.browser
Author: X.app

By: X.app Add-on

Download EXTENSION.browser (current and past versions) for Firefox

Latest Version: 2026.7.24 Updated: 3 days ago

Ready to install?

EXTENSION.browser is available to install from Firefox Add-ons Store and for download from this page.

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Available versions

You can find the current and older versions of EXTENSION.browser here. You can download the archived versions or inspect their source codes.

As a free user, you can download up to 3 latest versions.

Upgrade to download older versions

Version	Download	Size	Download count	Timestamp
2026.7.24	XPI · ZIP · Source code	339.01KB	0	2026-07-25
2026.7.4	XPI · ZIP · Source code	330.72KB	0	2026-07-16

2026-07-25 · 0 downloads

XPI ZIP Source code

2026-07-16 · 0 downloads

XPI ZIP Source code

Install XPI file

An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.

Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

Download the EXTENSION.browser ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the EXTENSION.browser ZIP file from step 1. EXTENSION.browser is now installed on your browser.