Examine source code of l-switch

{
  "name": "l-switch production",
  "version": "1.0.22",
  "description": "Firefox client for pm-switch (standalone package)",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "html/popup.html",
    "default_icon": {
      "48": "icons/luxuryball_48px.png",
      "128": "icons/luxuryball_128px.png"
    }
  },
  "icons": {
    "48": "icons/luxuryball_48px.png",
    "128": "icons/luxuryball_128px.png"
  },
  "permissions": [
    "storage",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "cookies",
    "browsingData"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "l-switch@pm-switch.local",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}