Examine source code of Browsing Sessions

{
  "manifest_version": 2,
  "name": "Browsing Sessions",
  "version": "1.0.2",
  "description": "Manage multiple persistent sets of tabs",
  "browser_specific_settings": {
    "gecko": {
      "id": "browsing-sessions@anasta.si",
      "strict_min_version": "76.0"
    }
  },
  "permissions": [
    "tabs",
    "storage",
    "clipboardWrite"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "images/icon-16.png",
      "32": "images/icon-32.png"
    },
    "browser_style": true,
    "default_popup": "popup/popup.html"
  }
}