manifest.json

{
  "name": "HumbleBundleKeyDownloader",
  "description": "Allows you to get a file with tab-separated values about all your Humble Bundle keys (Steam, Origin, etc). This includes redeem-status.",
  "version": "2.0",
  "permissions": [
    "activeTab",
    "https://www.humblebundle.com/"
  ],
  "web_accessible_resources": ["script.js"],
  "background": {
    "scripts": ["background.js"],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Download Humble Bundle keys"
  },
  "manifest_version": 2
}