Download Nusoft Security

Name: Nusoft Security
Author: SuKent17

By: SuKent17

Download Nusoft Security (current and past versions) for Firefox

Latest Version: 5.9.8.2 Updated: 10 months ago

Ready to install?

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

View source code

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Available versions

You can find the current and older versions of Nusoft Security 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
5.9.8.2	XPI · ZIP · Source code	121.46KB	0	2025-09-08
5.9.4.8	XPI · ZIP · Source code	121.99KB	0	2025-09-07

2025-09-08 · 0 downloads

XPI ZIP Source code

2025-09-07 · 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 Nusoft Security ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the Nusoft Security ZIP file from step 1. Nusoft Security is now installed on your browser.