Download Chess Notation Helper

Name: Chess Notation Helper
Author: mldnq

By: mldnq

Download Chess Notation Helper (current and past versions) for Firefox

Latest Version: 1.6.0 Updated: 7 months ago

Ready to install?

Chess Notation Helper 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 Chess Notation Helper 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
1.6.0	XPI · ZIP · Source code	22.59KB	2025-12-25
1.3.0	XPI · ZIP · Source code	22.60KB	2025-11-04
1.2.0	XPI · ZIP · Source code	24.91KB	2025-05-15

2025-12-25 · 0 downloads

XPI ZIP Source code

2025-11-04 · 0 downloads

XPI ZIP Source code

2025-05-15 · 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 Chess Notation Helper ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the Chess Notation Helper ZIP file from step 1. Chess Notation Helper is now installed on your browser.