Examine source code of Auto Bookmark

{
  "manifest_version": 2,
  "name": "Auto Bookmark",
  "version": "1.0",
  "description": "Automatically bookmark pages based on keywords",
  "permissions": [
    "bookmarks",
    "tabs",
    "storage"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "64": "icon64.png",
      "128": "icon128.png"
    }
  },
  "icons": {
    "64": "icon64.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0281daa3-89f7-4be4-85b6-ce2501b14840}",
      "strict_min_version": "107.0"
    }
  }
}