Download CopyMaj

Name: CopyMaj
Author: JustGeek

By: JustGeek

Download CopyMaj (current and past versions) for Firefox

Latest Version: 1.9 Updated: a month ago

Ready to install?

CopyMaj 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 CopyMaj 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
1.9	XPI · ZIP · Source code	16.39KB	2026-06-08
1.8	XPI · ZIP · Source code	14.35KB	2024-12-11
1.7	XPI · ZIP · Source code	14.21KB	2023-09-19

2026-06-08 · 0 downloads

XPI ZIP Source code

2024-12-11 · 0 downloads

XPI ZIP Source code

2023-09-19 · 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 CopyMaj ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the CopyMaj ZIP file from step 1. CopyMaj is now installed on your browser.