Examine source code of Tabulist (beta)

{
  "manifest_version": 2,
  "name": "Tabulist",
  "version": "0.5.0",
  "version_name": "0.5beta1",
  "description": "Save and switch between multiple tab sessions with one click",
  "icons": {
    "48": "favicon.png"
  },
  "options_ui": {
    "browser_style": false,
    "page": "templates/options.html",
    "open_in_tab": true
  },
  "browser_action": {
    "browser_style": false,
    "default_icon": {
      "32": "favicon.png"
    },
    "default_title": "Tabulist",
    "default_popup": "templates/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "tabulist@webext.kevmo.xyz",
      "strict_min_version": "57.0"
    }
  },
  "permissions": [
    "tabs",
    "sessions",
    "storage",
    "unlimitedStorage"
  ]
}