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Case Market Official Extension

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Overview

Official extension for Case Market. Enables seamless CS2 case trading

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

Details

  • Version
    2.0.0
  • Updated
    February 4, 2026
  • Size
    32.22KiB
  • Languages
    English (United States)
  • Developer
    Website
    Email
    support@casemarket.org
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Case Market Official Extension has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Case Market Official Extension handles the following:

Authentication information

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

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