Download Citadel browser agent

Name: Citadel browser agent
Author: Arno van Wouwe

By: Arno van Wouwe

Download Citadel browser agent (current and past versions) for Firefox

Latest Version: 1.3.2 Updated: a year ago

Ready to install?

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

View source code

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Total downloads

Available versions

You can find the current and older versions of Citadel browser agent 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
1.3.2	XPI · ZIP · Source code	187.80KB	2025-06-17
1.3.1	XPI · ZIP · Source code	187.78KB	2025-06-15
1.2	XPI · ZIP · Source code	169.91KB	2025-04-22

2025-06-17 · 0 downloads

XPI ZIP Source code

2025-06-15 · 0 downloads

XPI ZIP Source code

2025-04-22 · 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 Citadel browser agent ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the Citadel browser agent ZIP file from step 1. Citadel browser agent is now installed on your browser.