Examine source code of Linkify

{
  "name": "Linkify",
  "manifest_version": 2,
  "version": "0.0.1",
  "description": "Manage your links like a pro",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "index.html",
    "default_icon": "assets/icon.png"
  },
  "icons": {
    "128": "assets/icon.png"
  },
  "web_accessible_resources": [
    "*.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f5477c9f-693e-4c55-af80-7ed02bf33d4c}"
    }
  }
}