Case Market Official Extension icon

Case Market Official Extension

by Case Market

v2.1.1 Updated Mar 18, 2026 31.27KiB
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Description

Enable Seamless CS2 Trading on Case Market Case Market is a peer-to-peer marketplace for CS2 cases, where you can buy and sell cases at prices lower than Steam Market fees. This official companion extension enables secure, automated trading syncing your Steam session cookies. HOW IT WORKS 1. Install the extension - One-time setup, no configuration needed 2. Log into Case Market - Use your Steam account 3. Log into Steam Community - Visit steamcommunity.com in the same browser 4. Trade automatically - The extension handles the rest KEY FEATURES - Runs silently in the background - No popup, no buttons, no interaction required - Automatically detects and syncs your Steam session - Cookies encrypted before transmission PRIVACY & SECURITY - We only read Steam session cookies (sessionid and steamLoginSecure) - Cookies are encrypted client-side before being sent - Your Steam password is never accessed or stored - All communication happens over HTTPS PERMISSIONS EXPLAINED - cookies: Read Steam session cookies for trading - alarms: Schedule periodic sync checks - storage: Temporarily store cookies until you log into Case Market Support: https://casemarket.org or support@casemarket.org
Case Market Official Extension screenshot 1Case Market Official Extension screenshot 2Case Market Official Extension screenshot 3Case Market Official Extension screenshot 4Case Market Official Extension screenshot 5

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Permissions (3)

Permissions

alarms Can schedule periodic background tasks cookies Can read and modify browser cookies storage Can store data locally in your browser

Details

Version 2.1.1
Updated Mar 18, 2026
Size 31.27KiB
First Seen Mar 22, 2026