Examine source code of Auto Tab Grouper

{
  "manifest_version": 2,
  "name": "Auto Tab Grouper",
  "version": "1.0",
  "description": "Automatically groups tabs based on custom rules",
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "permissions": [
    "tabs",
    "tabGroups",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "auto-tab-grouper@yourdomain.com",
      "strict_min_version": "139.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "browser_action": {
    "default_icon": {
      "48": "icons/icon48.png",
      "96": "icons/icon96.png"
    },
    "default_title": "Auto Tab Grouper Options",
    "default_popup": "popup/options_link.html"
  }
}