Examine source code of Self Hosted Password Addon

{
  "manifest_version": 2,
  "name": "Password Manager",
  "description": "This extension connects to your password manager and inserts passwords and usernames into input fields.",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128_alpha.png"
  },
  "version": "0.3.15resigned1",
  "browser_action": {
    "default_icon": "iconLoggedOut.png",
    "default_popup": "popup/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "background": {
    "scripts": [
      "ext/commonFunctions.js",
      "ext/cryptoWrapper.js",
      "ext/account.js",
      "ext/backend.js",
      "background/context.js",
      "background/activeTabAction.js",
      "background/backgroundListener.js",
      "background/hostCommunication.js",
      "ext/sha512.js",
      "ext/aes.js",
      "ext/pbkdf2.js"
    ]
  },
  "permissions": [
    "activeTab",
    "*://*/*",
    "contextMenus",
    "storage"
  ],
  "options_ui": {
    "page": "popup/options.html",
    "chrome_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{321994fe-384f-4894-856b-d4aa108ebfbd}"
    }
  }
}