Examine source code of Auto Updating Bookmarks

{
  "author": "igorlogius",
  "homepage_url": "https://github.com/igorlogius/webextensions/tree/main/auto-updating-bookmarks",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_area": "navbar",
    "default_title": "create auto updating bookmark"
  },
  "icons": {},
  "description": "Create auto updating bookmarks on navigation in the same domain, for example to read webcomics and continue from where you left off",
  "manifest_version": 2,
  "name": "Auto Updating Bookmarks",
  "permissions": [
    "tabs",
    "bookmarks",
    "storage",
    "menus"
  ],
  "version": "1.6.12",
  "browser_specific_settings": {
    "gecko": {
      "id": "{81a6e2bd-2c4d-41e0-80b3-cd76831b8b4c}"
    }
  }
}