Examine source code of Session Share

{
  "action": {
    "default_icon": "scott128.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "lib/underscore.min.js",
      "lib/crypto-js.min.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "lib/jquery-v3.3.1.min.js",
        "content-script.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    },
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "default_locale": "en",
  "description": "__MSG_appDescription__",
  "host_permissions": [
    "*://*/*"
  ],
  "icons": {
    "48": "scott48.png",
    "128": "scott128.png"
  },
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "omnibox": {
    "keyword": "session_paste"
  },
  "permissions": [
    "contextMenus",
    "cookies",
    "clipboardWrite",
    "clipboardRead",
    "activeTab",
    "scripting",
    "notifications",
    "tabs",
    "declarativeNetRequest",
    "storage"
  ],
  "version": "1.2.1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{6d8a7c1b-9e2f-4c3d-8a0b-56789abcdef0}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "scott48.png",
        "scott128.png"
      ]
    }
  ]
}