Download AddSecurity

Name: AddSecurity
Author: PakCodeDT

By: PakCodeDT Add-on

Download AddSecurity (current and past versions) for Firefox

Latest Version: 3.82.0 Updated: 4 days ago

Ready to install?

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

View source code

Daily users

5.0

1 ratings

Total downloads

Available versions

You can find the current and older versions of AddSecurity 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	Timestamp
3.82.0	XPI · ZIP · Source code	85.66KB	2026-08-15
3.81.51.1	XPI · ZIP · Source code	85.23KB	2026-08-10
3.8.0	XPI · ZIP · Source code	71.44KB	2026-08-03
3.0.1	Paid users only	77.48KB	2026-07-26
2.5.0	Paid users only	61.20KB	2026-07-15
2.1.0	Paid users only	61.27KB	2026-07-15
1.9.91	Paid users only	515.30KB	2026-04-21

2026-08-15 · 0 downloads

XPI ZIP Source code

2026-08-10 · 0 downloads

XPI ZIP Source code

2026-08-03 · 0 downloads

XPI ZIP Source code

2026-07-26 · 0 downloads

Paid users only

2026-07-15 · 0 downloads

Paid users only

2026-07-15 · 0 downloads

Paid users only

2026-04-21 · 0 downloads

Paid users only

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