Examine source code of steam market csv

{
  "manifest_version": 2,
  "name": "steam market csv",
  "version": "1.0",
  "description": "Creates a csv file from a steam market item",
  "icons": {
    "48": "icons/icon_48.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/icon_32.png",
    "default_title": "Steam market csv",
    "default_popup": "popup/steam_csv.html"
  }
}