Examine source code of Paste and Go Key

{
  "name": "Paste and Go Key",
  "manifest_version": 2,
  "version": "1.2.3",
  "browser_specific_settings": {
    "gecko": {
      "id": "@pasteandgokey"
    }
  },
  "default_locale": "en",
  "description": "Adds a changeable keyboard shortcut that pastes the clipboard into the URL bar and loads it/searches for it.",
  "author": "AQmx",
  "icons": {
    "48": "icons/48.png"
  },
  "background": {
    "scripts": [
      "index.js"
    ]
  },
  "browser_action": {
    "default_title": "Paste and Go",
    "default_icon": {
      "16": "icons/16.png",
      "32": "icons/32.png",
      "64": "icons/64.png",
      "128": "icons/128.png",
      "256": "icons/256.png"
    }
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "clipboardRead",
    "search",
    "storage",
    "tabs"
  ],
  "commands": {
    "_execute_browser_action": {
      "description": "__MSG_shortcutTitle__",
      "suggested_key": {
        "default": "Ctrl+Shift+V"
      }
    }
  }
}