manifest.json

{
  "name": "Password Generator",
  "version": "0.0",
  "manifest_version": 2,
  "description": "Generate passwords for websites based on one master password and their domains.",
  "icons": {
    "16": "icons/icon-16.png",
    "19": "icons/icon-19.png",
    "32": "icons/icon-32.png",
    "38": "icons/icon-38.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png",
    "192": "icons/icon-192.png",
    "256": "icons/icon-256.png"
  },
  "permissions": ["activeTab", "storage"],
  "browser_action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "19": "icons/icon-19.png",
      "32": "icons/icon-32.png",
      "38": "icons/icon-38.png"
    },
    "default_title": "Password Generator",
    "default_popup": "generate.html"
  },
  "options_page": "options.html",
  "background": {
    "scripts": ["js/storage.js"],
    "persistent": true
  }
}