Examine source code of Session Backup and Share

{
  "name": "__MSG_extName__",
  "default_locale": "en",
  "version": "1.3.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "{70ac0fb0-7625-4366-aa11-495b8a08b03b}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "manifest_version": 3,
  "description": "__MSG_extDescription__",
  "background": {
    "scripts": [
      "background.js",
      "lib/underscore.min.js",
      "lib/crypto-js.min.js",
      "cookies.js"
    ]
  },
  "action": {
    "default_icon": {
      "48": "Icon48.png",
      "128": "Icon128.png"
    },
    "default_title": "__MSG_extName__"
  },
  "sidebar_action": {
    "default_panel": "sidePanel.html"
  },
  "icons": {
    "48": "Icon48.png",
    "128": "Icon128.png"
  },
  "permissions": [
    "cookies",
    "tabs",
    "storage",
    "clipboardRead",
    "clipboardWrite",
    "notifications",
    "declarativeNetRequest"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ]
}