Examine source code of UProject

{
  "manifest_version": 2,
  "name": "UProjectAddon",
  "version": "3.5",
  "description": "Модуль для автоматизации работы.",
  "permissions": [
    "cookies",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://uproject.io/*",
        "*://api.uproject.io/*",
        "*://*.steamcommunity.com/*",
        "*://*.steampowered.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "inject.js"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "icons/icon-128x128.png"
    }
  },
  "applications": {
    "gecko": {
      "id": "uproject-addon@uproject.com",
      "strict_min_version": "109.0"
    }
  }
}