Download Excalibur Dev Tools

Name: Excalibur Dev Tools
Author: Erik Onarheim

By: Erik Onarheim

Download Excalibur Dev Tools (current and past versions) for Firefox

Latest Version: 1.0.6 Updated: 2 months ago

Ready to install?

Excalibur Dev Tools 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 Excalibur Dev Tools 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
1.0.6	XPI · ZIP · Source code	299.82KB	2026-05-07
1.0.5	XPI · ZIP · Source code	299.70KB	2025-12-23
1.0.4	XPI · ZIP · Source code	299.72KB	2025-12-21
1.0.3	Paid users only	291.72KB	2025-06-03
1.0.2	Paid users only	292.15KB	2024-11-02
1.0.1	Paid users only	292.15KB	2024-10-07

2026-05-07 · 0 downloads

XPI ZIP Source code

2025-12-23 · 0 downloads

XPI ZIP Source code

2025-12-21 · 0 downloads

XPI ZIP Source code

2025-06-03 · 0 downloads

Paid users only

2024-11-02 · 0 downloads

Paid users only

2024-10-07 · 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 Excalibur Dev Tools ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the Excalibur Dev Tools ZIP file from step 1. Excalibur Dev Tools is now installed on your browser.