Examine source code of Kevin 299 Marshall

{
  "manifest_version": 2,
  "name": "Half Bite",
  "version": "1.0",
  "description": "This extension passes the content of a web page to a cloud service",
  "homepage_url": "https://halfbite.com",
  "icons": {
    "48": "48x48.png",
    "96": "96x96.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "webRequest",
    "webRequestBlocking",
    "http://*/",
    "https://*/"
  ],
  "browser_action": {
    "default_title": "Half Bite",
    "default_icon": "32x32.png",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ba34b29b-e50b-45a8-a7d3-ea77540f9ee2}"
    }
  }
}