Download KOSTEAM

Name: KOSTEAM
Author: KOSTEAM

By: KOSTEAM Add-on

Download KOSTEAM (current and past versions) for Firefox

Latest Version: 1.6.3 Updated: 2 months ago

Ready to install?

KOSTEAM 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 KOSTEAM 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
1.6.3	XPI · ZIP · Source code	48.19KB	2026-07-08
1.6.2	XPI · ZIP · Source code	45.87KB	2026-07-07
1.6.1	XPI · ZIP · Source code	45.23KB	2026-06-25
1.6.0	Paid users only	44.74KB	2026-04-01
1.5.6	Paid users only	45.73KB	2026-01-28
1.5.5	Paid users only	44.92KB	2026-01-27
1.4.9	Paid users only	35.84KB	2026-01-22
1.4.8	Paid users only	35.55KB	2026-01-19
1.4.7	Paid users only	35.62KB	2026-01-17

2026-07-08 · 0 downloads

XPI ZIP Source code

2026-07-07 · 0 downloads

XPI ZIP Source code

2026-06-25 · 0 downloads

XPI ZIP Source code

2026-04-01 · 0 downloads

Paid users only

2026-01-28 · 0 downloads

Paid users only

2026-01-27 · 0 downloads

Paid users only

2026-01-22 · 0 downloads

Paid users only

2026-01-19 · 0 downloads

Paid users only

2026-01-17 · 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 KOSTEAM ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the KOSTEAM ZIP file from step 1. KOSTEAM is now installed on your browser.