Examine source code of Hyperlinks

{
  "manifest_version": 2,
  "name": "Hyperlinks",
  "version": "1.0",
  "description": "Lists all HTTP and HTTPS links on the current page.",
  "icons": {
    "16": "icons/16.png",
    "24": "icons/24.png",
    "32": "icons/32.png",
    "64": "icons/64.png",
    "128": "icons/128.png",
    "256": "icons/256.png",
    "512": "icons/512.png"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": "icons/64.png",
    "default_title": "Hyperlinks",
    "default_popup": "popup.html"
  },
  "permissions": [
    "http://*/*",
    "https://*/*",
    "file:///*",
    "tabs"
  ]
}