Examine source code of Job Application Manager

{
  "manifest_version": 2,
  "name": "Job Application Manager",
  "version": "1.0",
  "description": "Track your job applications directly in your browser.",
  "background": {
    "scripts": [
      "popup.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7508170b-9d89-43ee-a84e-d147bc32dbc3}"
    }
  }
}